具有基本身份验证的 Twilio C# recordingStatusCallback uri

Twilio C# recordingStatusCallback uri with Basic Authentication

到目前为止,我的整个 C#/Twilio 应用程序一直在完美地使用带有基本身份验证的 HTTPS。我正在使用 C# TwiML 包装器 类 创建和 return 拨号 TwiML 命令。

    var helper = new UrlHelper(Request.RequestContext);
    var recordingUri = helper.ActionUri("Process", "RecordingCallBack");
    var vr = new VoiceResponse();
    var dial = new Dial("xxx-xxx-xxxx", record: record, timeout: 15,recordingStatusCallback: recordingUri, 
            recordingStatusCallbackEvent: recEvent, recordingStatusCallbackMethod:HttpMethod.Get);
    return TwiML(vr.Append(dial));

问题是 recordingStatusCallback 被 returned 为 401 Unauthorized 并且永远不会发送具有适当凭据的后续请求。当我将我的操作移至不受保护的控制器时,请求处理正常,但我不想暴露此端点。如何使用基本身份验证配置录音回调 url?

使用@Chetan Ranpariya 的上述评论,我创建了以下验证属性:

[AttributeUsage(AttributeTargets.Method)]
public class ValidateTwilioRequestAttribute : ActionFilterAttribute
{
    private readonly RequestValidator _requestValidator;

    public ValidateTwilioRequestAttribute()
    {
        var authToken = ConfigurationManager.AppSettings["TwilioAuthToken"];
        _requestValidator = new RequestValidator(authToken);
    }

    public override void OnActionExecuting(ActionExecutingContext actionContext)
    {
        var context = actionContext.HttpContext;
        if (!IsValidRequest(context.Request))
        {
            actionContext.Result = new HttpStatusCodeResult(HttpStatusCode.Forbidden);
        }

        base.OnActionExecuting(actionContext);
    }

    private bool IsValidRequest(HttpRequestBase request)
    {
        var signature = request.Headers["X-Twilio-Signature"];
        var requestUrl = request.Url.AbsoluteUri;
        return _requestValidator.Validate(requestUrl, request.Form, signature);
    }
}

并相应地装饰我的回调操作:

    [ValidateTwilioRequest]
    public ActionResult Process()
    {
       //do call back work
    }