using MediaBrowser.Common.Net; using MediaBrowser.Controller.Configuration; using MediaBrowser.Controller.Entities; using MediaBrowser.Controller.Entities.Audio; using MediaBrowser.Model.Logging; using MediaBrowser.Model.Net; using MediaBrowser.Model.Serialization; using System.IO; using System.Linq; using System.Threading; using System.Threading.Tasks; using System.Xml; namespace MediaBrowser.Controller.Providers.Music { public class LastfmArtistProvider : LastfmBaseProvider { private readonly IProviderManager _providerManager; public LastfmArtistProvider(IJsonSerializer jsonSerializer, IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager, IProviderManager providerManager) : base(jsonSerializer, httpClient, logManager, configurationManager) { _providerManager = providerManager; LocalMetaFileName = LastfmHelper.LocalArtistMetaFileName; } protected override async Task FindId(BaseItem item, CancellationToken cancellationToken) { // Try to find the id using last fm var id = await FindIdFromLastFm(item, cancellationToken).ConfigureAwait(false); if (!string.IsNullOrEmpty(id)) { return id; } // If we don't get anything, go directly to music brainz return await FindIdFromMusicBrainz(item, cancellationToken).ConfigureAwait(false); } private async Task FindIdFromLastFm(BaseItem item, CancellationToken cancellationToken) { //Execute the Artist search against our name and assume first one is the one we want var url = RootUrl + string.Format("method=artist.search&artist={0}&api_key={1}&format=json", UrlEncode(item.Name), ApiKey); LastfmArtistSearchResults searchResult; try { using (var json = await HttpClient.Get(url, LastfmResourcePool, cancellationToken).ConfigureAwait(false)) { searchResult = JsonSerializer.DeserializeFromStream(json); } } catch (HttpException e) { return null; } if (searchResult != null && searchResult.results != null && searchResult.results.artistmatches != null && searchResult.results.artistmatches.artist.Any()) { return searchResult.results.artistmatches.artist.First().mbid; } return null; } private async Task FindIdFromMusicBrainz(BaseItem item, CancellationToken cancellationToken) { var url = string.Format("http://www.musicbrainz.org/ws/2/artist/?query=artist:{0}", UrlEncode(item.Name)); var doc = await FanArtAlbumProvider.Current.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:artist-list/mb:artist[@type='Group']/@id", ns); if (node != null && node.Value != null) { return node.Value; } // Try again using the search with accent characters url url = string.Format("http://www.musicbrainz.org/ws/2/artist/?query=artistaccent:{0}", UrlEncode(item.Name)); doc = await FanArtAlbumProvider.Current.GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false); ns = new XmlNamespaceManager(doc.NameTable); ns.AddNamespace("mb", "http://musicbrainz.org/ns/mmd-2.0#"); node = doc.SelectSingleNode("//mb:artist-list/mb:artist[@type='Group']/@id", ns); if (node != null && node.Value != null) { return node.Value; } return null; } protected override async Task FetchLastfmData(BaseItem item, string id, CancellationToken cancellationToken) { // Get artist info with provided id var url = RootUrl + string.Format("method=artist.getInfo&mbid={0}&api_key={1}&format=json", UrlEncode(id), ApiKey); LastfmGetArtistResult result; using (var json = await HttpClient.Get(url, LastfmResourcePool, cancellationToken).ConfigureAwait(false)) { result = JsonSerializer.DeserializeFromStream(json); } if (result != null && result.artist != null) { LastfmHelper.ProcessArtistData(item, result.artist); //And save locally if indicated if (SaveLocalMeta) { var ms = new MemoryStream(); JsonSerializer.SerializeToStream(result.artist, ms); if (cancellationToken.IsCancellationRequested) { ms.Dispose(); cancellationToken.ThrowIfCancellationRequested(); } await _providerManager.SaveToLibraryFilesystem(item, Path.Combine(item.MetaLocation, LocalMetaFileName), ms, cancellationToken).ConfigureAwait(false); } } } public override bool Supports(BaseItem item) { return item is MusicArtist; } } }