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167 lines
5.7 KiB
C#
167 lines
5.7 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.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Serialization;
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using System;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Net;
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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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namespace MediaBrowser.Providers.Music
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{
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public class LastfmArtistProvider : IRemoteMetadataProvider<MusicArtist, ArtistInfo>, IHasOrder
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{
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private readonly IJsonSerializer _json;
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private readonly IHttpClient _httpClient;
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internal static readonly SemaphoreSlim LastfmResourcePool = new SemaphoreSlim(4, 4);
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internal const string RootUrl = @"http://ws.audioscrobbler.com/2.0/?";
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internal static string ApiKey = "7b76553c3eb1d341d642755aecc40a33";
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private readonly IServerConfigurationManager _config;
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private readonly ILogger _logger;
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public LastfmArtistProvider(IHttpClient httpClient, IJsonSerializer json, IServerConfigurationManager config, ILogger logger)
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{
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_httpClient = httpClient;
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_json = json;
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_config = config;
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_logger = logger;
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}
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public async Task<MetadataResult<MusicArtist>> GetMetadata(ArtistInfo id, CancellationToken cancellationToken)
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{
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var result = new MetadataResult<MusicArtist>();
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var musicBrainzId = id.GetArtistId();
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if (!String.IsNullOrWhiteSpace(musicBrainzId))
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{
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cancellationToken.ThrowIfCancellationRequested();
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result.Item = new MusicArtist();
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result.HasMetadata = true;
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await FetchLastfmData(result.Item, musicBrainzId, cancellationToken).ConfigureAwait(false);
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}
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return result;
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}
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protected virtual async Task FetchLastfmData(MusicArtist item, string musicBrainzId, CancellationToken cancellationToken)
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{
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// Get artist info with provided id
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var url = RootUrl + String.Format("method=artist.getInfo&mbid={0}&api_key={1}&format=json", UrlEncode(musicBrainzId), ApiKey);
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LastfmGetArtistResult result;
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using (var json = await _httpClient.Get(new HttpRequestOptions
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{
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Url = url,
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ResourcePool = LastfmResourcePool,
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CancellationToken = cancellationToken,
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EnableHttpCompression = false
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}).ConfigureAwait(false))
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{
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using (var reader = new StreamReader(json))
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{
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var jsonText = await reader.ReadToEndAsync().ConfigureAwait(false);
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// Fix their bad json
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jsonText = jsonText.Replace("\"#text\"", "\"url\"");
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result = _json.DeserializeFromString<LastfmGetArtistResult>(jsonText);
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}
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}
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if (result != null && result.artist != null)
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{
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ProcessArtistData(item, result.artist, musicBrainzId);
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}
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}
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private void ProcessArtistData(MusicArtist artist, LastfmArtist data, string musicBrainzId)
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{
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var yearFormed = 0;
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if (data.bio != null)
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{
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Int32.TryParse(data.bio.yearformed, out yearFormed);
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if (!artist.LockedFields.Contains(MetadataFields.Overview))
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{
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artist.Overview = data.bio.content;
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}
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if (!string.IsNullOrEmpty(data.bio.placeformed) && !artist.LockedFields.Contains(MetadataFields.ProductionLocations))
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{
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artist.AddProductionLocation(data.bio.placeformed);
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}
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}
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if (yearFormed > 0)
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{
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artist.PremiereDate = new DateTime(yearFormed, 1, 1, 0, 0, 0, DateTimeKind.Utc);
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artist.ProductionYear = yearFormed;
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}
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string imageSize;
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var url = LastfmHelper.GetImageUrl(data, out imageSize);
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LastfmHelper.SaveImageInfo(_config.ApplicationPaths, _logger, musicBrainzId, url, imageSize);
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}
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/// <summary>
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/// Determines whether the specified text has diacritics.
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/// </summary>
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/// <param name="text">The text.</param>
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/// <returns><c>true</c> if the specified text has diacritics; otherwise, <c>false</c>.</returns>
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private bool HasDiacritics(string text)
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{
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return !String.Equals(text, RemoveDiacritics(text), StringComparison.Ordinal);
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}
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/// <summary>
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/// Removes the diacritics.
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/// </summary>
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/// <param name="text">The text.</param>
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/// <returns>System.String.</returns>
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private string RemoveDiacritics(string text)
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{
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return String.Concat(
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text.Normalize(NormalizationForm.FormD)
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.Where(ch => CharUnicodeInfo.GetUnicodeCategory(ch) !=
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UnicodeCategory.NonSpacingMark)
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).Normalize(NormalizationForm.FormC);
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}
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/// <summary>
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/// Encodes an URL.
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/// </summary>
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/// <param name="name">The name.</param>
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/// <returns>System.String.</returns>
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private string UrlEncode(string name)
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{
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return WebUtility.UrlEncode(name);
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}
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public string Name
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{
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get { return "last.fm"; }
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}
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public int Order
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{
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get { return 1; }
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}
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}
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}
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