Clean http context in ProcessUserMessageAsync

Author: Oceania2018

src/Plugins/BotSharp.Plugin.Twilio/Services/TwilioMessageQueueService.cs

@@ -2,7 +2,9 @@
 using BotSharp.Abstraction.Routing;
 using BotSharp.Core.Infrastructures;
 using BotSharp.Plugin.Twilio.Models;
+using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Hosting;
+using System.Security.Claims;
 using System.Threading;
 using Task = System.Threading.Tasks.Task;
 
@@ -58,6 +60,11 @@ private async Task ProcessUserMessageAsync(CallerMessage message)
             using var scope = _serviceProvider.CreateScope();
             var sp = scope.ServiceProvider;
 
+            // Clean static HttpContext
+            var httpContext = sp.GetRequiredService<IHttpContextAccessor>();
+            httpContext.HttpContext = new DefaultHttpContext();
+            httpContext.HttpContext.User = new ClaimsPrincipal(new ClaimsIdentity());
+
             AssistantMessage reply = null;
             var inputMsg = new RoleDialogModel(AgentRole.User, message.Content);
             var conv = sp.GetRequiredService<IConversationService>();