New: Add minimum version checks for applications

src/NzbDrone.Core/Applications/Lidarr/Lidarr.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Net;
 using FluentValidation.Results;
 using Newtonsoft.Json.Linq;
 using NLog;
@@ -49,10 +48,10 @@ namespace NzbDrone.Core.Applications.Lidarr
             {
                 failures.AddIfNotNull(_lidarrV1Proxy.TestConnection(BuildLidarrIndexer(testIndexer, DownloadProtocol.Usenet), Settings));
             }
-            catch (WebException ex)
+            catch (Exception ex)
             {
                 _logger.Error(ex, "Unable to send test message");
-                failures.AddIfNotNull(new ValidationFailure("BaseUrl", "Unable to complete application test, cannot connect to Lidarr"));
+                failures.AddIfNotNull(new ValidationFailure("BaseUrl", $"Unable to complete application test, cannot connect to Lidarr. {ex.Message}"));
             }
 
             return new ValidationResult(failures);
@@ -61,7 +60,7 @@ namespace NzbDrone.Core.Applications.Lidarr
         public override List<AppIndexerMap> GetIndexerMappings()
         {
             var indexers = _lidarrV1Proxy.GetIndexers(Settings)
-                .Where(i => i.Implementation == "Newznab" || i.Implementation == "Torznab");
+                .Where(i => i.Implementation is "Newznab" or "Torznab");
 
             var mappings = new List<AppIndexerMap>();
 

src/NzbDrone.Core/Applications/Lidarr/LidarrV1Proxy.cs

@@ -23,8 +23,11 @@ namespace NzbDrone.Core.Applications.Lidarr
 
     public class LidarrV1Proxy : ILidarrV1Proxy
     {
+        private static Version MinimumApplicationVersion => new (1, 0, 2, 0);
+
         private const string AppApiRoute = "/api/v1";
         private const string AppIndexerApiRoute = $"{AppApiRoute}/indexer";
+
         private readonly IHttpClient _httpClient;
         private readonly Logger _logger;
 
@@ -102,7 +105,17 @@ namespace NzbDrone.Core.Applications.Lidarr
 
             try
             {
-                Execute<LidarrIndexer>(request);
+                var applicationVersion = _httpClient.Post<LidarrIndexer>(request).Headers.GetSingleValue("X-Application-Version");
+
+                if (applicationVersion == null)
+                {
+                    return new ValidationFailure(string.Empty, "Failed to fetch Lidarr version");
+                }
+
+                if (new Version(applicationVersion) < MinimumApplicationVersion)
+                {
+                    return new ValidationFailure(string.Empty, $"Lidarr version should be at least {MinimumApplicationVersion.ToString(3)}. Version reported is {applicationVersion}", applicationVersion);
+                }
             }
             catch (HttpException ex)
             {

src/NzbDrone.Core/Applications/Radarr/Radarr.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Net;
 using FluentValidation.Results;
 using Newtonsoft.Json.Linq;
 using NLog;
@@ -49,10 +48,10 @@ namespace NzbDrone.Core.Applications.Radarr
             {
                 failures.AddIfNotNull(_radarrV3Proxy.TestConnection(BuildRadarrIndexer(testIndexer, DownloadProtocol.Usenet), Settings));
             }
-            catch (WebException ex)
+            catch (Exception ex)
             {
                 _logger.Error(ex, "Unable to send test message");
-                failures.AddIfNotNull(new ValidationFailure("BaseUrl", "Unable to complete application test, cannot connect to Radarr"));
+                failures.AddIfNotNull(new ValidationFailure("BaseUrl", $"Unable to complete application test, cannot connect to Radarr. {ex.Message}"));
             }
 
             return new ValidationResult(failures);
@@ -61,7 +60,7 @@ namespace NzbDrone.Core.Applications.Radarr
         public override List<AppIndexerMap> GetIndexerMappings()
         {
             var indexers = _radarrV3Proxy.GetIndexers(Settings)
-                .Where(i => i.Implementation == "Newznab" || i.Implementation == "Torznab");
+                .Where(i => i.Implementation is "Newznab" or "Torznab");
 
             var mappings = new List<AppIndexerMap>();
 

src/NzbDrone.Core/Applications/Radarr/RadarrV3Proxy.cs

@@ -23,8 +23,12 @@ namespace NzbDrone.Core.Applications.Radarr
 
     public class RadarrV3Proxy : IRadarrV3Proxy
     {
+        private static Version MinimumApplicationV4Version => new (4, 0, 4, 0);
+        private static Version MinimumApplicationV3Version => new (3, 1, 1, 0);
+
         private const string AppApiRoute = "/api/v3";
         private const string AppIndexerApiRoute = $"{AppApiRoute}/indexer";
+
         private readonly IHttpClient _httpClient;
         private readonly Logger _logger;
 
@@ -102,7 +106,29 @@ namespace NzbDrone.Core.Applications.Radarr
 
             try
             {
-                Execute<RadarrIndexer>(request);
+                var applicationVersion = _httpClient.Post<RadarrIndexer>(request).Headers.GetSingleValue("X-Application-Version");
+
+                if (applicationVersion == null)
+                {
+                    return new ValidationFailure(string.Empty, "Failed to fetch Radarr version");
+                }
+
+                var version = new Version(applicationVersion);
+
+                if (version.Major == 3)
+                {
+                    if (version < MinimumApplicationV3Version)
+                    {
+                        return new ValidationFailure(string.Empty, $"Radarr version should be at least {MinimumApplicationV3Version.ToString(3)}. Version reported is {applicationVersion}", applicationVersion);
+                    }
+                }
+                else
+                {
+                    if (version < MinimumApplicationV4Version)
+                    {
+                        return new ValidationFailure(string.Empty, $"Radarr version should be at least {MinimumApplicationV4Version.ToString(3)}. Version reported is {applicationVersion}", applicationVersion);
+                    }
+                }
             }
             catch (HttpException ex)
             {

src/NzbDrone.Core/Applications/Sonarr/Sonarr.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Net;
 using FluentValidation.Results;
 using Newtonsoft.Json.Linq;
 using NLog;
@@ -49,10 +48,10 @@ namespace NzbDrone.Core.Applications.Sonarr
             {
                 failures.AddIfNotNull(_sonarrV3Proxy.TestConnection(BuildSonarrIndexer(testIndexer, DownloadProtocol.Usenet), Settings));
             }
-            catch (WebException ex)
+            catch (Exception ex)
             {
                 _logger.Error(ex, "Unable to send test message");
-                failures.AddIfNotNull(new ValidationFailure("BaseUrl", "Unable to complete application test, cannot connect to Sonarr"));
+                failures.AddIfNotNull(new ValidationFailure("BaseUrl", $"Unable to complete application test, cannot connect to Sonarr. {ex.Message}"));
             }
 
             return new ValidationResult(failures);
@@ -61,7 +60,7 @@ namespace NzbDrone.Core.Applications.Sonarr
         public override List<AppIndexerMap> GetIndexerMappings()
         {
             var indexers = _sonarrV3Proxy.GetIndexers(Settings)
-                .Where(i => i.Implementation == "Newznab" || i.Implementation == "Torznab");
+                .Where(i => i.Implementation is "Newznab" or "Torznab");
 
             var mappings = new List<AppIndexerMap>();
 

src/NzbDrone.Core/Applications/Sonarr/SonarrV3Proxy.cs

@@ -23,8 +23,11 @@ namespace NzbDrone.Core.Applications.Sonarr
 
     public class SonarrV3Proxy : ISonarrV3Proxy
     {
+        private static Version MinimumApplicationVersion => new (3, 0, 5, 0);
+
         private const string AppApiRoute = "/api/v3";
         private const string AppIndexerApiRoute = $"{AppApiRoute}/indexer";
+
         private readonly IHttpClient _httpClient;
         private readonly Logger _logger;
 
@@ -102,7 +105,17 @@ namespace NzbDrone.Core.Applications.Sonarr
 
             try
             {
-                Execute<SonarrIndexer>(request);
+                var applicationVersion = _httpClient.Post<SonarrIndexer>(request).Headers.GetSingleValue("X-Application-Version");
+
+                if (applicationVersion == null)
+                {
+                    return new ValidationFailure(string.Empty, "Failed to fetch Sonarr version");
+                }
+
+                if (new Version(applicationVersion) < MinimumApplicationVersion)
+                {
+                    return new ValidationFailure(string.Empty, $"Sonarr version should be at least {MinimumApplicationVersion.ToString(3)}. Version reported is {applicationVersion}", applicationVersion);
+                }
             }
             catch (HttpException ex)
             {