Add support for custom RetryAfter in RequestLimitReachedException

(cherry picked from commit 47cf8e6430b7f7704ce2f1524fa9e3c8e6f9b47a)

src/NzbDrone.Common/Http/HttpRequestBuilder.cs

@@ -20,6 +20,7 @@ namespace NzbDrone.Common.Http
         public Dictionary<string, string> Segments { get; private set; }
         public HttpHeader Headers { get; private set; }
         public bool SuppressHttpError { get; set; }
+        public IEnumerable<HttpStatusCode> SuppressHttpErrorStatusCodes { get; set; }
         public bool LogHttpError { get; set; }
         public bool UseSimplifiedUserAgent { get; set; }
         public bool AllowAutoRedirect { get; set; }
@@ -102,6 +103,7 @@ namespace NzbDrone.Common.Http
         {
             request.Method = Method;
             request.SuppressHttpError = SuppressHttpError;
+            request.SuppressHttpErrorStatusCodes = SuppressHttpErrorStatusCodes;
             request.LogHttpError = LogHttpError;
             request.UseSimplifiedUserAgent = UseSimplifiedUserAgent;
             request.AllowAutoRedirect = AllowAutoRedirect;

src/NzbDrone.Common/Http/TooManyRequestsException.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 
 namespace NzbDrone.Common.Http
 {

src/NzbDrone.Core/Indexers/Exceptions/RequestLimitReachedException.cs

@@ -1,9 +1,12 @@
-using NzbDrone.Common.Exceptions;
+using System;
+using NzbDrone.Common.Exceptions;
 
 namespace NzbDrone.Core.Indexers.Exceptions
 {
     public class RequestLimitReachedException : NzbDroneException
     {
+        public TimeSpan RetryAfter { get; private set; }
+
         public RequestLimitReachedException(string message, params object[] args)
             : base(message, args)
         {
@@ -13,5 +16,11 @@ namespace NzbDrone.Core.Indexers.Exceptions
             : base(message)
         {
         }
+
+        public RequestLimitReachedException(string message, TimeSpan retryAfter)
+            : base(message)
+        {
+            RetryAfter = retryAfter;
+        }
     }
 }

src/NzbDrone.Core/Indexers/HttpIndexerBase.cs

@@ -207,9 +207,17 @@ namespace NzbDrone.Core.Indexers
                 _indexerStatusService.RecordFailure(Definition.Id);
                 _logger.Warn("{0} {1}", this, ex.Message);
             }
-            catch (RequestLimitReachedException)
+            catch (RequestLimitReachedException ex)
             {
-                _indexerStatusService.RecordFailure(Definition.Id, TimeSpan.FromHours(1));
+                if (ex.RetryAfter != TimeSpan.Zero)
+                {
+                    _indexerStatusService.RecordFailure(Definition.Id, ex.RetryAfter);
+                }
+                else
+                {
+                    _indexerStatusService.RecordFailure(Definition.Id, TimeSpan.FromHours(1));
+                }
+
                 _logger.Warn("API Request Limit reached for {0}", this);
             }
             catch (ApiKeyException)