Merge pull request #5385 from Bond-009/dlna2

Use XDocument.LoadAsync instead of XDocument.Parse

(cherry picked from commit a1cdc2c63f)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

Emby.Dlna/PlayTo/SsdpHttpClient.cs

@@ -45,10 +45,10 @@ namespace Emby.Dlna.PlayTo
                     cancellationToken)
                 .ConfigureAwait(false);
             await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
-            using var reader = new StreamReader(stream, Encoding.UTF8);
-            return XDocument.Parse(
-                await reader.ReadToEndAsync().ConfigureAwait(false),
-                LoadOptions.PreserveWhitespace);
+            return await XDocument.LoadAsync(
+                stream,
+                LoadOptions.PreserveWhitespace,
+                cancellationToken).ConfigureAwait(false);
         }
 
         private static string NormalizeServiceUrl(string baseUrl, string serviceUrl)
@@ -94,10 +94,10 @@ namespace Emby.Dlna.PlayTo
             options.Headers.TryAddWithoutValidation("FriendlyName.DLNA.ORG", FriendlyName);
             using var response = await _httpClientFactory.CreateClient(NamedClient.Default).SendAsync(options, HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
             await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
-            using var reader = new StreamReader(stream, Encoding.UTF8);
-            return XDocument.Parse(
-                await reader.ReadToEndAsync().ConfigureAwait(false),
-                LoadOptions.PreserveWhitespace);
+            return await XDocument.LoadAsync(
+                stream,
+                LoadOptions.PreserveWhitespace,
+                cancellationToken).ConfigureAwait(false);
         }
 
         private async Task<HttpResponseMessage> PostSoapDataAsync(

Emby.Dlna/PlayTo/TransportCommands.cs

@@ -13,12 +13,10 @@ namespace Emby.Dlna.PlayTo
     public class TransportCommands
     {
         private const string CommandBase = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n" + "<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">" + "<SOAP-ENV:Body>" + "<m:{0} xmlns:m=\"{1}\">" + "{2}" + "</m:{0}>" + "</SOAP-ENV:Body></SOAP-ENV:Envelope>";
-        private List<StateVariable> _stateVariables = new List<StateVariable>();
-        private List<ServiceAction> _serviceActions = new List<ServiceAction>();
 
-        public List<StateVariable> StateVariables => _stateVariables;
+        public List<StateVariable> StateVariables { get; } = new List<StateVariable>();
 
-        public List<ServiceAction> ServiceActions => _serviceActions;
+        public List<ServiceAction> ServiceActions { get; } = new List<ServiceAction>();
 
         public static TransportCommands Create(XDocument document)
         {