Fix some Build Issues, Renaming

src/Lidarr.Http/Frontend/Mappers/BackupFileMapper.cs

@@ -0,0 +1,31 @@
+using System.IO;
+using NLog;
+using NzbDrone.Common.Disk;
+using NzbDrone.Common.EnvironmentInfo;
+using NzbDrone.Common.Extensions;
+
+namespace Lidarr.Http.Frontend.Mappers
+{
+    public class BackupFileMapper : StaticResourceMapperBase
+    {
+        private readonly IAppFolderInfo _appFolderInfo;
+
+        public BackupFileMapper(IAppFolderInfo appFolderInfo, IDiskProvider diskProvider, Logger logger)
+            : base(diskProvider, logger)
+        {
+            _appFolderInfo = appFolderInfo;
+        }
+
+        public override string Map(string resourceUrl)
+        {
+            var path = resourceUrl.Replace("/backup/", "").Replace('/', Path.DirectorySeparatorChar);
+
+            return Path.Combine(_appFolderInfo.GetBackupFolder(), path);
+        }
+
+        public override bool CanHandle(string resourceUrl)
+        {
+            return resourceUrl.StartsWith("/backup/") && resourceUrl.ContainsIgnoreCase("nzbdrone_backup_")  && resourceUrl.EndsWith(".zip");
+        }
+    }
+}