2 files changed, 7 insertions, 39 deletions
diff --git a/MediaBrowser.Model/Net/MimeTypes.cs b/MediaBrowser.Model/Net/MimeTypes.cs
index 3b03466e9d..5a1871070d 100644
--- a/MediaBrowser.Model/Net/MimeTypes.cs
+++ b/MediaBrowser.Model/Net/MimeTypes.cs
@@ -117,7 +117,9 @@ namespace MediaBrowser.Model.Net
 
             // Type image
             { "image/jpeg", ".jpg" },
+            { "image/tiff", ".tiff" },
             { "image/x-png", ".png" },
+            { "image/x-icon", ".ico" },
 
             // Type text
             { "text/plain", ".txt" },
@@ -140,10 +142,7 @@ namespace MediaBrowser.Model.Net
         [return: NotNullIfNotNull("defaultValue")]
         public static string? GetMimeType(string filename, string? defaultValue = null)
         {
-            if (filename.Length == 0)
-            {
-                throw new ArgumentException("String can't be empty.", nameof(filename));
-            }
+            ArgumentException.ThrowIfNullOrEmpty(filename);
 
             var ext = Path.GetExtension(filename);
 
@@ -168,10 +167,7 @@ namespace MediaBrowser.Model.Net
 
         public static string? ToExtension(string mimeType)
         {
-            if (mimeType.Length == 0)
-            {
-                throw new ArgumentException("String can't be empty.", nameof(mimeType));
-            }
+            ArgumentException.ThrowIfNullOrEmpty(mimeType);
 
             // handle text/html; charset=UTF-8
             mimeType = mimeType.AsSpan().LeftPart(';').ToString();
@@ -184,5 +180,8 @@ namespace MediaBrowser.Model.Net
             var extension = Model.MimeTypes.GetMimeTypeExtensions(mimeType).FirstOrDefault();
             return string.IsNullOrEmpty(extension) ? null : "." + extension;
         }
+
+        public static bool IsImage(ReadOnlySpan<char> mimeType)
+            => mimeType.StartsWith("image/", StringComparison.OrdinalIgnoreCase);
     }
 }
diff --git a/MediaBrowser.Model/Net/WebSocketMessage.cs b/MediaBrowser.Model/Net/WebSocketMessage.cs
deleted file mode 100644
index b00158cb33..0000000000
--- a/MediaBrowser.Model/Net/WebSocketMessage.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-#nullable disable
-#pragma warning disable CS1591
-
-using System;
-using MediaBrowser.Model.Session;
-
-namespace MediaBrowser.Model.Net
-{
-    /// <summary>
-    /// Class WebSocketMessage.
-    /// </summary>
-    /// <typeparam name="T">The type of the data.</typeparam>
-    public class WebSocketMessage<T>
-    {
-        /// <summary>
-        /// Gets or sets the type of the message.
-        /// </summary>
-        /// <value>The type of the message.</value>
-        public SessionMessageType MessageType { get; set; }
-
-        public Guid MessageId { get; set; }
-
-        public string ServerId { get; set; }
-
-        /// <summary>
-        /// Gets or sets the data.
-        /// </summary>
-        /// <value>The data.</value>
-        public T Data { get; set; }
-    }
-}