我正在开发一个使用Azure B2C身份验证的ASP.NET MVC应用，要求在ID令牌过期（IIS会话未过期）后，任何后续操作调用都应使用刷新令牌自动刷新ID令牌，然后继续执行，无需重新登录。
问题：
1.解决方案是否合理？
1.刷新ID令牌并设置Cookie后，如何重定向到原始URL并继续执行而无需重新登录？
谢谢，任何想法都是高度赞赏。
这是我的代码：

protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
{
    var refreshToken = HttpContext.Current.Request.Cookies["msal.refreshtoken"];

    if (refreshToken != null && !string.IsNullOrEmpty(refreshToken.Value))
    {
        var newIdToken = TokenService.RefreshIdToken(refreshToken.Value);

        var idTokenCookie = new HttpCookie("msal.idtoken", newIdToken)
            {
                Secure = true,
                HttpOnly = true
            };

        HttpContext.Current.Response.Cookies.Set(idTokenCookie);

        return;
    }
}

// TokenService.RefreshIdToken
public static string RefreshIdToken(string refreshToken)
{
    var policyName = ConfigurationManager.AppSettings["ida:SignUpSignInPolicyId"];
    var B2CDomain = ConfigurationManager.AppSettings["ida:B2CDomain"];
    var tenant = ConfigurationManager.AppSettings["ida:Tenant"];
    var clientId = ConfigurationManager.AppSettings["ida:ClientId"];
    var clientSecret = ConfigurationManager.AppSettings["ida:ClientSecret"];
    var tokenEndpointUri = $"https://{B2CDomain}/{tenant}/{policyName}/oauth2/v2.0/token";
    var httpClient = new HttpClient();

    var requestBodyDict = new Dictionary<string, string>
        {
            { "grant_type" , "refresh_token" },
            { "client_id" , clientId },
            { "client_secret" , clientSecret },
            { "scope" , $"openid" },
            { "refresh_token" , refreshToken }
        };

    var request = new HttpRequestMessage
        {
            RequestUri = new Uri(tokenEndpointUri),
            Method = HttpMethod.Post,
            Content = new FormUrlEncodedContent(requestBodyDict)
        };

    var task = Task.Run(() => httpClient.SendAsync(request));
    task.Wait();

    var response = task.Result;

    var task1 = Task.Run(() => response.Content.ReadAsStringAsync());
    task1.Wait();
    var responseString = task1.Result;

    if (response.IsSuccessStatusCode)
    {
        var idToken = (string)JsonConvert.DeserializeObject<dynamic>(responseString).id_token.ToString();
        return idToken;
    }
    else
    {
        throw new Exception();
    }
}