feat: add IsImpresonated extension

Author: ksavosteev

src/VirtoCommerce.Platform.Security/Extensions/ClaimsPrincipalExtensions.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Security.Claims;
 using OpenIddict.Abstractions;
+using VirtoCommerce.Platform.Core;
 
 namespace VirtoCommerce.Platform.Security.Extensions
 {
@@ -42,5 +43,11 @@ public static ClaimsPrincipal SetClaimWithDestinations(this ClaimsPrincipal clai
 
             return claimsPrincipal;
         }
+
+        public static bool IsImpersonated(this ClaimsPrincipal claimsPrincipal)
+        {
+            return claimsPrincipal?.HasClaim(PlatformConstants.Security.Claims.OperatorUserId) == true &&
+                claimsPrincipal?.HasClaim(PlatformConstants.Security.Claims.OperatorUserName) == true;
+        }
     }
 }

src/VirtoCommerce.Platform.Web/Controllers/Api/AuthorizationController.cs

@@ -335,6 +335,8 @@ public async Task<ActionResult> Exchange()
                     }
                 }
 
+                await HandleTokenRequest(impersonatedUser, context);
+
                 // Create a new authentication ticket, but reuse the properties stored in the
                 // authorization code/refresh token, including the scopes originally granted.
                 var ticket = await CreateTicketAsync(impersonatedUser, context);