Fixed: Filter old releases on RSS for RED and Gazelle

src/NzbDrone.Core/Indexers/Gazelle/Gazelle.cs

@@ -1,4 +1,6 @@
+using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
@@ -6,6 +8,7 @@ using NzbDrone.Common.Cache;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Parser;
+using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.ThingiProvider;
 
 namespace NzbDrone.Core.Indexers.Gazelle
@@ -17,6 +20,7 @@ namespace NzbDrone.Core.Indexers.Gazelle
         public override bool SupportsRss => true;
         public override bool SupportsSearch => true;
         public override int PageSize => 50;
+        public override TimeSpan RateLimit => TimeSpan.FromSeconds(3);
 
         private readonly ICached<Dictionary<string, string>> _authCookieCache;
 
@@ -33,7 +37,7 @@ namespace NzbDrone.Core.Indexers.Gazelle
 
         public override IIndexerRequestGenerator GetRequestGenerator()
         {
-            return new GazelleRequestGenerator()
+            return new GazelleRequestGenerator
             {
                 Settings = Settings,
                 HttpClient = _httpClient,
@@ -47,6 +51,18 @@ namespace NzbDrone.Core.Indexers.Gazelle
             return new GazelleParser(Settings);
         }
 
+        protected override IList<ReleaseInfo> CleanupReleases(IEnumerable<ReleaseInfo> releases, bool isRecent = false)
+        {
+            var cleanReleases = base.CleanupReleases(releases, isRecent);
+
+            if (isRecent)
+            {
+                cleanReleases = cleanReleases.Take(50).ToList();
+            }
+
+            return cleanReleases;
+        }
+
         public override IEnumerable<ProviderDefinition> DefaultDefinitions
         {
             get

src/NzbDrone.Core/Indexers/HttpIndexerBase.cs

@@ -252,7 +252,7 @@ namespace NzbDrone.Core.Indexers
                 _logger.Error(ex, "An error occurred while processing feed. {0}", url);
             }
 
-            return CleanupReleases(releases);
+            return CleanupReleases(releases, isRecent);
         }
 
         protected virtual bool IsValidRelease(ReleaseInfo release)

src/NzbDrone.Core/Indexers/IndexerBase.cs

@@ -72,7 +72,7 @@ namespace NzbDrone.Core.Indexers
         public abstract Task<IList<ReleaseInfo>> Fetch(ArtistSearchCriteria searchCriteria);
         public abstract HttpRequest GetDownloadRequest(string link);
 
-        protected virtual IList<ReleaseInfo> CleanupReleases(IEnumerable<ReleaseInfo> releases)
+        protected virtual IList<ReleaseInfo> CleanupReleases(IEnumerable<ReleaseInfo> releases, bool isRecent = false)
         {
             var result = releases.DistinctBy(v => v.Guid).ToList();
 

src/NzbDrone.Core/Indexers/Redacted/Redacted.cs

@@ -1,7 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
 using NLog;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Parser;
+using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.Indexers.Redacted
 {
@@ -12,6 +16,7 @@ namespace NzbDrone.Core.Indexers.Redacted
         public override bool SupportsRss => true;
         public override bool SupportsSearch => true;
         public override int PageSize => 50;
+        public override TimeSpan RateLimit => TimeSpan.FromSeconds(3);
 
         public Redacted(IHttpClient httpClient,
                         IIndexerStatusService indexerStatusService,
@@ -39,5 +44,17 @@ namespace NzbDrone.Core.Indexers.Redacted
 
             return request;
         }
+
+        protected override IList<ReleaseInfo> CleanupReleases(IEnumerable<ReleaseInfo> releases, bool isRecent = false)
+        {
+            var cleanReleases = base.CleanupReleases(releases, isRecent);
+
+            if (isRecent)
+            {
+                cleanReleases = cleanReleases.Take(50).ToList();
+            }
+
+            return cleanReleases;
+        }
     }
 }