private bool IsValidRequest(TwilioWebhookBindingModel twilioAuthenticationBindingModel)
{
var signature = twilioAuthenticationBindingModel.Headers[_twilioHeader];
var form = twilioAuthenticationBindingModel.Form;
var requestUri = twilioAuthenticationBindingModel.DisplayUrl;
return(_requestValidator.Validate(requestUri, form, signature));
}
public async Task ProcessSmsResponseWebHookHttpTriggerOrchestrator([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "smsWebHook")] HttpRequest httpRequest, [DurableClient] IDurableOrchestrationClient client, ILogger log)
{
var bindingModel = new TwilioWebhookBindingModel
{
Body = await httpRequest.ReadAsStringAsync(),
DisplayUrl = UriHelper.GetDisplayUrl(httpRequest),
Form = httpRequest.Form.ToNameValueCollection().ToDictionary(),
Headers = httpRequest.Headers.ToDictionary(k => k.Key, v => v.Value.ToString())
};
await client.StartNewAsync(BugrReminderApiFunctionNames.ProcessSmsResponseWebHookOrchestrationTrigger, bindingModel);
log.LogInformation($"Begun {BugrReminderApiFunctionNames.ProcessSmsResponseWebHookOrchestrationTrigger}");
}
public async Task <bool> AuthenticateWebHookRequest(TwilioWebhookBindingModel twilioAuthenticationBindingModel)
{
var twilioAuthToken = await _secretClient.GetSecretValueAsync(_secretKeySettings.TwilioAuthToken);
_requestValidator = new RequestValidator(twilioAuthToken);
var isNotValidRequest = !IsValidRequest(twilioAuthenticationBindingModel);
if (isNotValidRequest)
{
throw new SmsWebHookAuthenticationException("Unable to authenticate webhook request");
}
return(true);
}
