Fix release build

Emby.Dlna/DlnaManager.cs

@@ -199,6 +199,11 @@ namespace Emby.Dlna
 
             if (headers.TryGetValue(header.Name, out StringValues value))
             {
+                if (StringValues.IsNullOrEmpty(value))
+                {
+                    return false;
+                }
+
                 switch (header.Match)
                 {
                     case HeaderMatchType.Equals:
@@ -208,7 +213,8 @@ namespace Emby.Dlna
                         // _logger.LogDebug("IsMatch-Substring value: {0} testValue: {1} isMatch: {2}", value, header.Value, isMatch);
                         return isMatch;
                     case HeaderMatchType.Regex:
-                        return Regex.IsMatch(value, header.Value, RegexOptions.IgnoreCase);
+                        // Can't be null, we checked above the switch statement
+                        return Regex.IsMatch(value!, header.Value, RegexOptions.IgnoreCase);
                     default:
                         throw new ArgumentException("Unrecognized HeaderMatchType");
                 }

Emby.Dlna/IDlnaEventManager.cs

@@ -1,3 +1,4 @@
+#nullable disable
 #pragma warning disable CS1591
 
 namespace Emby.Dlna

Emby.Dlna/Service/BaseService.cs

@@ -1,3 +1,4 @@
+#nullable disable
 #pragma warning disable CS1591
 
 using System.Net.Http;

Jellyfin.Api/Controllers/ImageController.cs

@@ -28,6 +28,7 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Primitives;
 using Microsoft.Net.Http.Headers;
 
 namespace Jellyfin.Api.Controllers
@@ -2026,8 +2027,13 @@ namespace Jellyfin.Api.Controllers
             }
 
             var acceptParam = Request.Query[HeaderNames.Accept];
+            if (StringValues.IsNullOrEmpty(acceptParam))
+            {
+                return Array.Empty<ImageFormat>();
+            }
 
-            var supportsWebP = SupportsFormat(supportedFormats, acceptParam, ImageFormat.Webp, false);
+            // Can't be null, checked above
+            var supportsWebP = SupportsFormat(supportedFormats, acceptParam!, ImageFormat.Webp, false);
 
             if (!supportsWebP)
             {
@@ -2049,7 +2055,8 @@ namespace Jellyfin.Api.Controllers
             formats.Add(ImageFormat.Jpg);
             formats.Add(ImageFormat.Png);
 
-            if (SupportsFormat(supportedFormats, acceptParam, ImageFormat.Gif, true))
+            // Can't be null, checked above
+            if (SupportsFormat(supportedFormats, acceptParam!, ImageFormat.Gif, true))
             {
                 formats.Add(ImageFormat.Gif);
             }

Jellyfin.Api/Helpers/StreamingHelpers.cs

@@ -364,9 +364,9 @@ namespace Jellyfin.Api.Helpers
         /// </summary>
         /// <param name="queryString">The query string.</param>
         /// <returns>A <see cref="Dictionary{String,String}"/> containing the stream options.</returns>
-        private static Dictionary<string, string> ParseStreamOptions(IQueryCollection queryString)
+        private static Dictionary<string, string?> ParseStreamOptions(IQueryCollection queryString)
         {
-            Dictionary<string, string> streamOptions = new Dictionary<string, string>();
+            Dictionary<string, string?> streamOptions = new Dictionary<string, string?>();
             foreach (var param in queryString)
             {
                 if (char.IsLower(param.Key[0]))

MediaBrowser.Controller/Extensions/ConfigurationExtensions.cs

@@ -73,7 +73,7 @@ namespace MediaBrowser.Controller.Extensions
         /// </summary>
         /// <param name="configuration">The configuration to read the setting from.</param>
         /// <returns>The FFmpeg probe size option.</returns>
-        public static string GetFFmpegProbeSize(this IConfiguration configuration)
+        public static string? GetFFmpegProbeSize(this IConfiguration configuration)
             => configuration[FfmpegProbeSizeKey];
 
         /// <summary>
@@ -81,7 +81,7 @@ namespace MediaBrowser.Controller.Extensions
         /// </summary>
         /// <param name="configuration">The configuration to read the setting from.</param>
         /// <returns>The FFmpeg analyze duration option.</returns>
-        public static string GetFFmpegAnalyzeDuration(this IConfiguration configuration)
+        public static string? GetFFmpegAnalyzeDuration(this IConfiguration configuration)
             => configuration[FfmpegAnalyzeDurationKey];
 
         /// <summary>
@@ -105,7 +105,7 @@ namespace MediaBrowser.Controller.Extensions
         /// </summary>
         /// <param name="configuration">The configuration to read the setting from.</param>
         /// <returns>The unix socket path.</returns>
-        public static string GetUnixSocketPath(this IConfiguration configuration)
+        public static string? GetUnixSocketPath(this IConfiguration configuration)
             => configuration[UnixSocketPathKey];
 
         /// <summary>
@@ -113,7 +113,7 @@ namespace MediaBrowser.Controller.Extensions
         /// </summary>
         /// <param name="configuration">The configuration to read the setting from.</param>
         /// <returns>The unix socket permissions.</returns>
-        public static string GetUnixSocketPermissions(this IConfiguration configuration)
+        public static string? GetUnixSocketPermissions(this IConfiguration configuration)
             => configuration[UnixSocketPermissionsKey];
     }
 }