fixes #623 - Get all album id's directly from music brainz

MediaBrowser.Providers/MediaBrowser.Providers.csproj

@@ -94,6 +94,7 @@
     <Compile Include="Music\ManualFanartAlbumProvider.cs" />
     <Compile Include="Music\ManualFanartArtistProvider.cs" />
     <Compile Include="Music\ManualLastFmImageProvider.cs" />
+    <Compile Include="Music\MusicBrainzAlbumProvider.cs" />
     <Compile Include="Music\MusicVideoXmlParser.cs" />
     <Compile Include="Music\SoundtrackPostScanTask.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

MediaBrowser.Providers/Music/FanArtAlbumProvider.cs

@@ -56,7 +56,7 @@ namespace MediaBrowser.Providers.Music
         /// <value>The priority.</value>
         public override MetadataProviderPriority Priority
         {
-            get { return MetadataProviderPriority.Fourth; }
+            get { return MetadataProviderPriority.Fifth; }
         }
 
         /// <summary>
@@ -97,7 +97,7 @@ namespace MediaBrowser.Providers.Music
         {
             get
             {
-                return "17";
+                return "18";
             }
         }
 

MediaBrowser.Providers/Music/LastfmAlbumProvider.cs

@@ -11,10 +11,8 @@ using MoreLinq;
 using System;
 using System.IO;
 using System.Linq;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
-using System.Xml;
 
 namespace MediaBrowser.Providers.Music
 {
@@ -22,11 +20,6 @@ namespace MediaBrowser.Providers.Music
     {
         internal static LastfmAlbumProvider Current;
 
-        /// <summary>
-        /// The _music brainz resource pool
-        /// </summary>
-        private readonly SemaphoreSlim _musicBrainzResourcePool = new SemaphoreSlim(1, 1);
-
         public LastfmAlbumProvider(IJsonSerializer jsonSerializer, IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager)
             : base(jsonSerializer, httpClient, logManager, configurationManager)
         {
@@ -39,7 +32,7 @@ namespace MediaBrowser.Providers.Music
         /// <value>The priority.</value>
         public override MetadataProviderPriority Priority
         {
-            get { return MetadataProviderPriority.Third; }
+            get { return MetadataProviderPriority.Fourth; }
         }
 
         protected override string ProviderVersion
@@ -99,20 +92,6 @@ namespace MediaBrowser.Providers.Music
             {
                 LastfmHelper.ProcessAlbumData(item, result.album);
             }
-
-            var releaseEntryId = item.GetProviderId(MetadataProviders.Musicbrainz);
-
-            if (!string.IsNullOrEmpty(releaseEntryId))
-            {
-                var musicBrainzReleaseGroupId = album.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup);
-                
-                if (string.IsNullOrEmpty(musicBrainzReleaseGroupId))
-                {
-                    musicBrainzReleaseGroupId = await GetReleaseGroupId(releaseEntryId, cancellationToken).ConfigureAwait(false);
-
-                    album.SetProviderId(MetadataProviders.MusicBrainzReleaseGroup, musicBrainzReleaseGroupId);
-                }
-            }
             
             BaseProviderInfo data;
             if (!item.ProviderData.TryGetValue(Id, out data))
@@ -241,77 +220,5 @@ namespace MediaBrowser.Providers.Music
 
             return string.Join(string.Empty, albumArtists.OrderBy(i => i).ToArray()).GetMD5();
         }
-
-        /// <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;
-        }
-        /// <summary>
-        /// The _last music brainz request
-        /// </summary>
-        private DateTime _lastRequestDate = DateTime.MinValue;
-
-        /// <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 - _lastRequestDate).TotalMilliseconds;
-
-                // MusicBrainz is extremely adamant about limiting to one request per second
-
-                if (diff > 0)
-                {
-                    await Task.Delay(Convert.ToInt32(diff), cancellationToken).ConfigureAwait(false);
-                }
-
-                _lastRequestDate = DateTime.Now;
-
-                var doc = new XmlDocument();
-
-                using (var xml = await HttpClient.Get(new HttpRequestOptions
-                {
-                    Url = url,
-                    CancellationToken = cancellationToken,
-                    UserAgent = Environment.MachineName
-
-                }).ConfigureAwait(false))
-                {
-                    using (var oReader = new StreamReader(xml, Encoding.UTF8))
-                    {
-                        doc.Load(oReader);
-                    }
-                }
-
-                return doc;
-            }
-            finally
-            {
-                _lastRequestDate = DateTime.Now;
-
-                _musicBrainzResourcePool.Release();
-            }
-        }
     }
 }

MediaBrowser.Providers/Music/LastfmArtistProvider.cs

@@ -164,7 +164,7 @@ namespace MediaBrowser.Providers.Music
 
             var url = string.Format("http://www.musicbrainz.org/ws/2/artist/?query=artist:\"{0}\"", UrlEncode(nameToSearch));
 
-            var doc = await LastfmAlbumProvider.Current.GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
+            var doc = await MusicBrainzAlbumProvider.Current.GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
 
             var ns = new XmlNamespaceManager(doc.NameTable);
             ns.AddNamespace("mb", "http://musicbrainz.org/ns/mmd-2.0#");
@@ -180,7 +180,7 @@ namespace MediaBrowser.Providers.Music
                 // Try again using the search with accent characters url
                 url = string.Format("http://www.musicbrainz.org/ws/2/artist/?query=artistaccent:\"{0}\"", UrlEncode(nameToSearch));
 
-                doc = await LastfmAlbumProvider.Current.GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
+                doc = await MusicBrainzAlbumProvider.Current.GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
 
                 ns = new XmlNamespaceManager(doc.NameTable);
                 ns.AddNamespace("mb", "http://musicbrainz.org/ns/mmd-2.0#");

MediaBrowser.Providers/Music/LastfmHelper.cs

@@ -96,8 +96,6 @@ namespace MediaBrowser.Providers.Music
 
         public static void ProcessAlbumData(BaseItem item, LastfmAlbum data)
         {
-            if (!string.IsNullOrWhiteSpace(data.mbid)) item.SetProviderId(MetadataProviders.Musicbrainz, data.mbid);
-
             var overview = data.wiki != null ? data.wiki.content : null;
 
             if (!item.LockedFields.Contains(MetadataFields.Overview))

MediaBrowser.Providers/Music/MusicBrainzAlbumProvider.cs

@@ -0,0 +1,222 @@
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Logging;
+using System;
+using System.IO;
+using System.Net;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Xml;
+
+namespace MediaBrowser.Providers.Music
+{
+    public class MusicBrainzAlbumProvider : BaseMetadataProvider
+    {
+        internal static MusicBrainzAlbumProvider Current;
+
+        private readonly IHttpClient _httpClient;
+
+        public MusicBrainzAlbumProvider(ILogManager logManager, IServerConfigurationManager configurationManager, IHttpClient httpClient)
+            : base(logManager, configurationManager)
+        {
+            _httpClient = httpClient;
+
+            Current = this;
+        }
+
+        public override bool Supports(BaseItem item)
+        {
+            return item is MusicAlbum;
+        }
+
+        public override async Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
+        {
+            var releaseId = item.GetProviderId(MetadataProviders.Musicbrainz);
+            var releaseGroupId = item.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup);
+
+            if (string.IsNullOrEmpty(releaseId))
+            {
+                var result = await GetReleaseResult((MusicAlbum)item, cancellationToken).ConfigureAwait(false);
+
+                if (!string.IsNullOrEmpty(result.ReleaseId))
+                {
+                    releaseId = result.ReleaseId;
+                    item.SetProviderId(MetadataProviders.Musicbrainz, releaseId);
+                }
+
+                if (!string.IsNullOrEmpty(result.ReleaseGroupId))
+                {
+                    releaseGroupId = result.ReleaseGroupId;
+                    item.SetProviderId(MetadataProviders.MusicBrainzReleaseGroup, releaseGroupId);
+                }
+            }
+
+            // If we have a release Id but not a release group Id...
+            if (!string.IsNullOrEmpty(releaseId) && string.IsNullOrEmpty(releaseGroupId))
+            {
+                releaseGroupId = await GetReleaseGroupId(releaseId, cancellationToken).ConfigureAwait(false);
+
+                item.SetProviderId(MetadataProviders.MusicBrainzReleaseGroup, releaseGroupId);
+            }
+
+            SetLastRefreshed(item, DateTime.UtcNow);
+            return true;
+        }
+
+        private Task<ReleaseResult> GetReleaseResult(MusicAlbum album, CancellationToken cancellationToken)
+        {
+            var artist = album.Parent;
+            var artistId = artist.GetProviderId(MetadataProviders.Musicbrainz);
+
+            if (!string.IsNullOrEmpty(artistId))
+            {
+                return GetReleaseResult(album.Name, artistId, cancellationToken);
+            }
+
+            return GetReleaseResultByArtistName(album.Name, artist.Name, cancellationToken);
+        }
+
+        private async Task<ReleaseResult> GetReleaseResult(string albumName, string artistId, CancellationToken cancellationToken)
+        {
+            var url = string.Format("http://www.musicbrainz.org/ws/2/release/?query=\"{0}\" and arid:{1}",
+                WebUtility.UrlEncode(albumName),
+                artistId);
+
+            var doc = await GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
+
+            return GetReleaseResult(doc);
+        }
+
+        private async Task<ReleaseResult> GetReleaseResultByArtistName(string albumName, string artistName, CancellationToken cancellationToken)
+        {
+            var url = string.Format("http://www.musicbrainz.org/ws/2/release/?query=\"{0}\" and artist:\"{1}\"",
+                WebUtility.UrlEncode(albumName),
+                WebUtility.UrlEncode(artistName));
+
+            var doc = await GetMusicBrainzResponse(url, cancellationToken).ConfigureAwait(false);
+
+            return GetReleaseResult(doc);
+        }
+
+        private ReleaseResult GetReleaseResult(XmlDocument doc)
+        {
+            var ns = new XmlNamespaceManager(doc.NameTable);
+            ns.AddNamespace("mb", "http://musicbrainz.org/ns/mmd-2.0#");
+
+            var result = new ReleaseResult
+            {
+
+            };
+
+            var releaseIdNode = doc.SelectSingleNode("//mb:release-list/mb:release/@id", ns);
+
+            if (releaseIdNode != null)
+            {
+                result.ReleaseId = releaseIdNode.Value;
+            }
+
+            var releaseGroupIdNode = doc.SelectSingleNode("//mb:release-list/mb:release/mb:release-group/@id", ns);
+
+            if (releaseGroupIdNode != null)
+            {
+                result.ReleaseGroupId = releaseGroupIdNode.Value;
+            }
+            
+            return result;
+        }
+
+        private class ReleaseResult
+        {
+            public string ReleaseId;
+            public string ReleaseGroupId;
+        }
+
+        /// <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;
+        }
+
+        /// <summary>
+        /// The _last music brainz request
+        /// </summary>
+        private DateTime _lastRequestDate = DateTime.MinValue;
+        /// <summary>
+        /// The _music brainz resource pool
+        /// </summary>
+        private readonly SemaphoreSlim _musicBrainzResourcePool = 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 - _lastRequestDate).TotalMilliseconds;
+
+                // MusicBrainz is extremely adamant about limiting to one request per second
+
+                if (diff > 0)
+                {
+                    await Task.Delay(Convert.ToInt32(diff), cancellationToken).ConfigureAwait(false);
+                }
+
+                _lastRequestDate = DateTime.Now;
+
+                var doc = new XmlDocument();
+
+                using (var xml = await _httpClient.Get(new HttpRequestOptions
+                {
+                    Url = url,
+                    CancellationToken = cancellationToken,
+                    UserAgent = Environment.MachineName
+
+                }).ConfigureAwait(false))
+                {
+                    using (var oReader = new StreamReader(xml, Encoding.UTF8))
+                    {
+                        doc.Load(oReader);
+                    }
+                }
+
+                return doc;
+            }
+            finally
+            {
+                _lastRequestDate = DateTime.Now;
+
+                _musicBrainzResourcePool.Release();
+            }
+        }
+
+
+        public override MetadataProviderPriority Priority
+        {
+            get { return MetadataProviderPriority.Third; }
+        }
+    }
+}