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199 lines
6.8 KiB
C#
199 lines
6.8 KiB
C#
using MediaBrowser.Common.Net;
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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.Providers;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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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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using System.Xml;
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namespace MediaBrowser.Providers.Music
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{
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public class MusicBrainzArtistProvider : IRemoteMetadataProvider<MusicArtist, ArtistInfo>
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{
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public async Task<IEnumerable<RemoteSearchResult>> GetSearchResults(ArtistInfo searchInfo, CancellationToken cancellationToken)
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{
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var musicBrainzId = searchInfo.GetMusicBrainzArtistId();
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if (!string.IsNullOrWhiteSpace(musicBrainzId))
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{
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var url = string.Format("/ws/2/artist/?query=arid:{0}", musicBrainzId);
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var doc = await MusicBrainzAlbumProvider.Current.GetMusicBrainzResponse(url, false, cancellationToken)
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.ConfigureAwait(false);
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return GetResultsFromResponse(doc);
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}
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else
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{
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// They seem to throw bad request failures on any term with a slash
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var nameToSearch = searchInfo.Name.Replace('/', ' ');
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var url = String.Format("/ws/2/artist/?query=artist:\"{0}\"", UrlEncode(nameToSearch));
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var doc = await MusicBrainzAlbumProvider.Current.GetMusicBrainzResponse(url, true, cancellationToken).ConfigureAwait(false);
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var results = GetResultsFromResponse(doc).ToList();
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if (results.Count > 0)
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{
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return results;
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}
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if (HasDiacritics(searchInfo.Name))
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{
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// Try again using the search with accent characters url
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url = String.Format("/ws/2/artist/?query=artistaccent:\"{0}\"", UrlEncode(nameToSearch));
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doc = await MusicBrainzAlbumProvider.Current.GetMusicBrainzResponse(url, true, cancellationToken).ConfigureAwait(false);
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return GetResultsFromResponse(doc);
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}
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}
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return new List<RemoteSearchResult>();
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}
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private IEnumerable<RemoteSearchResult> GetResultsFromResponse(XmlDocument doc)
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{
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var list = new List<RemoteSearchResult>();
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var docElem = doc.DocumentElement;
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if (docElem == null)
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{
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return list;
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}
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var artistList = docElem.FirstChild;
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if (artistList == null)
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{
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return list;
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}
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var nodes = artistList.ChildNodes;
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if (nodes != null)
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{
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foreach (var node in nodes.Cast<XmlNode>())
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{
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if (node.Attributes != null)
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{
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string name = null;
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string overview = null;
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string mbzId = node.Attributes["id"].Value;
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foreach (var child in node.ChildNodes.Cast<XmlNode>())
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{
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if (string.Equals(child.Name, "name", StringComparison.OrdinalIgnoreCase))
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{
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name = child.InnerText;
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}
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if (string.Equals(child.Name, "annotation", StringComparison.OrdinalIgnoreCase))
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{
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overview = child.InnerText;
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}
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}
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if (!string.IsNullOrWhiteSpace(mbzId) && !string.IsNullOrWhiteSpace(name))
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{
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var result = new RemoteSearchResult
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{
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Name = name,
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Overview = overview
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};
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result.SetProviderId(MetadataProviders.MusicBrainzArtist, mbzId);
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list.Add(result);
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}
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}
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}
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}
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return list;
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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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{
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Item = new MusicArtist()
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};
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var musicBrainzId = id.GetMusicBrainzArtistId();
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if (string.IsNullOrWhiteSpace(musicBrainzId))
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{
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var searchResults = await GetSearchResults(id, cancellationToken).ConfigureAwait(false);
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var singleResult = searchResults.FirstOrDefault();
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if (singleResult != null)
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{
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musicBrainzId = singleResult.GetProviderId(MetadataProviders.MusicBrainzArtist);
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//result.Item.Name = singleResult.Name;
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result.Item.Overview = singleResult.Overview;
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}
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}
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if (!string.IsNullOrWhiteSpace(musicBrainzId))
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{
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result.HasMetadata = true;
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result.Item.SetProviderId(MetadataProviders.MusicBrainzArtist, musicBrainzId);
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}
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return result;
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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 "MusicBrainz"; }
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}
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public Task<HttpResponseInfo> GetImageResponse(string url, CancellationToken cancellationToken)
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{
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throw new NotImplementedException();
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}
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}
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}
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