319 lines
12 KiB
C#
319 lines
12 KiB
C#
using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using System;
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using System.IO;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Xml;
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namespace MediaBrowser.Providers.Music
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{
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/// <summary>
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/// Class FanArtAlbumProvider
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/// </summary>
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public class FanArtAlbumProvider : FanartBaseProvider
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{
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/// <summary>
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/// The _provider manager
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/// </summary>
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private readonly IProviderManager _providerManager;
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/// <summary>
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/// The _music brainz resource pool
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/// </summary>
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private readonly SemaphoreSlim _musicBrainzResourcePool = new SemaphoreSlim(1, 1);
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/// <summary>
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/// Gets the HTTP client.
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/// </summary>
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/// <value>The HTTP client.</value>
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protected IHttpClient HttpClient { get; private set; }
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internal static FanArtAlbumProvider Current { get; private set; }
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/// <summary>
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/// Initializes a new instance of the <see cref="FanArtAlbumProvider"/> class.
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/// </summary>
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/// <param name="httpClient">The HTTP client.</param>
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/// <param name="logManager">The log manager.</param>
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/// <param name="configurationManager">The configuration manager.</param>
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/// <param name="providerManager">The provider manager.</param>
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public FanArtAlbumProvider(IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager, IProviderManager providerManager)
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: base(logManager, configurationManager)
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{
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_providerManager = providerManager;
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HttpClient = httpClient;
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Current = this;
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}
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/// <summary>
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/// Gets the priority.
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/// </summary>
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/// <value>The priority.</value>
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public override MetadataProviderPriority Priority
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{
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get { return MetadataProviderPriority.Fourth; }
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}
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/// <summary>
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/// Supportses the specified item.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <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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{
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return item is MusicAlbum;
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}
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public override ItemUpdateType ItemUpdateType
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{
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get
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{
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return ItemUpdateType.ImageUpdate;
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}
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}
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/// <summary>
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/// Gets a value indicating whether [refresh on version change].
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/// </summary>
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/// <value><c>true</c> if [refresh on version change]; otherwise, <c>false</c>.</value>
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protected override bool RefreshOnVersionChange
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{
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get
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{
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return true;
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}
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}
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/// <summary>
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/// Gets the provider version.
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/// </summary>
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/// <value>The provider version.</value>
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protected override string ProviderVersion
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{
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get
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{
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return "17";
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}
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}
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/// <summary>
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/// Needses the refresh internal.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="providerInfo">The provider info.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
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{
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if (string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.Musicbrainz)))
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{
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return false;
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}
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if (!ConfigurationManager.Configuration.DownloadMusicAlbumImages.Disc &&
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!ConfigurationManager.Configuration.DownloadMusicAlbumImages.Primary)
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{
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return false;
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}
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return base.NeedsRefreshInternal(item, providerInfo);
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}
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protected override DateTime CompareDate(BaseItem item)
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{
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var artistMusicBrainzId = item.Parent.GetProviderId(MetadataProviders.Musicbrainz);
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if (!string.IsNullOrEmpty(artistMusicBrainzId))
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{
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var artistXmlPath = FanArtArtistProvider.GetArtistDataPath(ConfigurationManager.CommonApplicationPaths, artistMusicBrainzId);
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artistXmlPath = Path.Combine(artistXmlPath, "fanart.xml");
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var file = new FileInfo(artistXmlPath);
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if (file.Exists)
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{
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return file.LastWriteTimeUtc;
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}
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}
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return base.CompareDate(item);
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}
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/// <summary>
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/// Fetches metadata and returns true or false indicating if any work that requires persistence was done
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="force">if set to <c>true</c> [force].</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task{System.Boolean}.</returns>
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public override async Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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var artistMusicBrainzId = item.Parent.GetProviderId(MetadataProviders.Musicbrainz);
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BaseProviderInfo data;
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if (!item.ProviderData.TryGetValue(Id, out data))
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{
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data = new BaseProviderInfo();
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item.ProviderData[Id] = data;
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}
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if (!string.IsNullOrEmpty(artistMusicBrainzId))
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{
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var artistXmlPath = FanArtArtistProvider.GetArtistDataPath(ConfigurationManager.CommonApplicationPaths, artistMusicBrainzId);
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artistXmlPath = Path.Combine(artistXmlPath, "fanart.xml");
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var artistXmlFileInfo = new FileInfo(artistXmlPath);
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if (artistXmlFileInfo.Exists)
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{
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var album = (MusicAlbum)item;
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var releaseEntryId = item.GetProviderId(MetadataProviders.Musicbrainz);
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var musicBrainzReleaseGroupId = album.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup);
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// Fanart uses the release group id so we'll have to get that now using the release entry id
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if (string.IsNullOrEmpty(musicBrainzReleaseGroupId))
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{
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musicBrainzReleaseGroupId = await GetReleaseGroupId(releaseEntryId, cancellationToken).ConfigureAwait(false);
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album.SetProviderId(MetadataProviders.MusicBrainzReleaseGroup, musicBrainzReleaseGroupId);
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}
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var doc = new XmlDocument();
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doc.Load(artistXmlPath);
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cancellationToken.ThrowIfCancellationRequested();
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if (ConfigurationManager.Configuration.DownloadMusicAlbumImages.Disc && !item.HasImage(ImageType.Disc))
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{
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// Try try with the release entry Id, if that doesn't produce anything try the release group id
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var node = doc.SelectSingleNode("//fanart/music/albums/album[@id=\"" + releaseEntryId + "\"]/cdart/@url");
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if (node == null && !string.IsNullOrEmpty(musicBrainzReleaseGroupId))
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{
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node = doc.SelectSingleNode("//fanart/music/albums/album[@id=\"" + musicBrainzReleaseGroupId + "\"]/cdart/@url");
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}
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var path = node != null ? node.Value : null;
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if (!string.IsNullOrEmpty(path))
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{
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await _providerManager.SaveImage(item, path, FanArtResourcePool, ImageType.Disc, null, cancellationToken)
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.ConfigureAwait(false);
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}
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}
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if (ConfigurationManager.Configuration.DownloadMusicAlbumImages.Primary && !item.HasImage(ImageType.Primary))
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{
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// Try try with the release entry Id, if that doesn't produce anything try the release group id
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var node = doc.SelectSingleNode("//fanart/music/albums/album[@id=\"" + releaseEntryId + "\"]/albumcover/@url");
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if (node == null && !string.IsNullOrEmpty(musicBrainzReleaseGroupId))
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{
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node = doc.SelectSingleNode("//fanart/music/albums/album[@id=\"" + musicBrainzReleaseGroupId + "\"]/albumcover/@url");
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}
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var path = node != null ? node.Value : null;
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if (!string.IsNullOrEmpty(path))
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{
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await _providerManager.SaveImage(item, path, FanArtResourcePool, ImageType.Primary, null, cancellationToken)
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.ConfigureAwait(false);
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}
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}
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}
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}
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SetLastRefreshed(item, DateTime.UtcNow);
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return true;
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}
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/// <summary>
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/// The _last music brainz request
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/// </summary>
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private DateTime _lastRequestDate = DateTime.MinValue;
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/// <summary>
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/// Gets the music brainz response.
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/// </summary>
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/// <param name="url">The URL.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task{XmlDocument}.</returns>
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internal async Task<XmlDocument> GetMusicBrainzResponse(string url, CancellationToken cancellationToken)
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{
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await _musicBrainzResourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
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try
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{
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var diff = 1500 - (DateTime.Now - _lastRequestDate).TotalMilliseconds;
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// MusicBrainz is extremely adamant about limiting to one request per second
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if (diff > 0)
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{
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await Task.Delay(Convert.ToInt32(diff), cancellationToken).ConfigureAwait(false);
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}
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_lastRequestDate = DateTime.Now;
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var doc = new XmlDocument();
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using (var xml = await HttpClient.Get(new HttpRequestOptions
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{
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Url = url,
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CancellationToken = cancellationToken,
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UserAgent = Environment.MachineName
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}).ConfigureAwait(false))
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{
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using (var oReader = new StreamReader(xml, Encoding.UTF8))
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{
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doc.Load(oReader);
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}
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}
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return doc;
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}
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finally
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{
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_lastRequestDate = DateTime.Now;
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_musicBrainzResourcePool.Release();
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}
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}
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/// <summary>
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/// Gets the release group id internal.
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/// </summary>
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/// <param name="releaseEntryId">The release entry id.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task{System.String}.</returns>
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private async Task<string> GetReleaseGroupId(string releaseEntryId, CancellationToken cancellationToken)
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{
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var url = string.Format("http://www.musicbrainz.org/ws/2/release-group/?query=reid:{0}", releaseEntryId);
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var doc = await GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
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var ns = new XmlNamespaceManager(doc.NameTable);
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ns.AddNamespace("mb", "http://musicbrainz.org/ns/mmd-2.0#");
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var node = doc.SelectSingleNode("//mb:release-group-list/mb:release-group/@id", ns);
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return node != null ? node.Value : null;
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}
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}
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}
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