massive checkpoint

Gameboard.ShogiUI.Sockets/Extensions/Extensions.cs

@@ -0,0 +1,18 @@
+using System.Linq;
+using System.Security.Claims;
+
+namespace Gameboard.ShogiUI.Sockets.Extensions
+{
+  public static class Extensions
+  {
+    public static string? UserId(this ClaimsPrincipal self)
+    {
+      return self.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier)?.Value;
+    }
+
+    public static bool IsGuest(this ClaimsPrincipal self)
+    {
+      return self.HasClaim(c => c.Type == ClaimTypes.Role && c.Value == "Guest");
+    }
+  }
+}