API endpoint to parse a release title

src/NzbDrone.Api/Indexers/ReleaseModule.cs

@@ -43,10 +43,12 @@ public ReleaseModule(IFetchAndParseRss rssFetcherAndParser,
             _prioritizeDownloadDecision = prioritizeDownloadDecision;
             _downloadService = downloadService;
             _logger = logger;
+
             GetResourceAll = GetReleases;
             Post["/"] = x => DownloadRelease(this.Bind<ReleaseResource>());
 
             PostValidator.RuleFor(s => s.DownloadAllowed).Equal(true);
+            PostValidator.RuleFor(s => s.Guid).NotEmpty();
 
             _remoteEpisodeCache = cacheManager.GetCache<RemoteEpisode>(GetType(), "remoteEpisodes");
         }

src/NzbDrone.Api/NzbDrone.Api.csproj

@@ -100,6 +100,8 @@
     <Compile Include="Extensions\AccessControlHeaders.cs" />
     <Compile Include="Extensions\Pipelines\CorsPipeline.cs" />
     <Compile Include="Frontend\Mappers\LoginHtmlMapper.cs" />
+    <Compile Include="Parse\ParseModule.cs" />
+    <Compile Include="Parse\ParseResource.cs" />
     <Compile Include="Profiles\Delay\DelayProfileModule.cs" />
     <Compile Include="Profiles\Delay\DelayProfileResource.cs" />
     <Compile Include="Profiles\Delay\DelayProfileValidator.cs" />

src/NzbDrone.Api/Parse/ParseModule.cs

@@ -0,0 +1,49 @@
+using NzbDrone.Core.Parser;
+using NzbDrone.Core.Parser.Model;
+
+namespace NzbDrone.Api.Parse
+{
+    public class ParseModule : NzbDroneRestModule<ParseResource>
+    {
+        private readonly IParsingService _parsingService;
+
+        public ParseModule(IParsingService parsingService)
+        {
+            _parsingService = parsingService;
+
+            GetResourceSingle = Parse;
+        }
+
+        private ParseResource Parse()
+        {
+            var title = Request.Query.Title.Value;
+            var parsedEpisodeInfo = Parser.ParseTitle(title);
+
+            if (parsedEpisodeInfo == null)
+            {
+                return null;
+            }
+
+            var remoteEpisode = _parsingService.Map(parsedEpisodeInfo);
+
+            if (remoteEpisode == null)
+            {
+                remoteEpisode = new RemoteEpisode
+                                {
+                                    ParsedEpisodeInfo = parsedEpisodeInfo
+                                };
+
+                return new ParseResource
+                       {
+                           Title = title,
+                           ParsedEpisodeInfo = parsedEpisodeInfo
+                       };
+            }
+
+            var resource = ToResource(remoteEpisode);
+            resource.Title = title;
+
+            return resource;
+        }
+    }
+}

src/NzbDrone.Api/Parse/ParseResource.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using NzbDrone.Api.Episodes;
+using NzbDrone.Api.REST;
+using NzbDrone.Api.Series;
+using NzbDrone.Core.Parser.Model;
+
+namespace NzbDrone.Api.Parse
+{
+    public class ParseResource : RestResource
+    {
+        public string Title { get; set; }
+        public ParsedEpisodeInfo ParsedEpisodeInfo { get; set; }
+        public SeriesResource Series { get; set; }
+        public List<EpisodeResource> Episodes { get; set; }
+    }
+}