/// <summary>
/// Actual validation process
/// </summary>
/// <param name="payload"></param>
/// <returns></returns>
private async Task <EtnPayload> ValidatePayload(EtnPayload payload)
{
bool isTesting = Request.Headers.ContainsKey("X-ETN-TESTING");
if (isTesting)
{
if ((string)Request.Headers["X-ETN-TESTING"] != GetEtnXTestingSig())
{
throw new Exception($"Invalid testing signature");
}
}
var userAgent = GetHeaderOrThrow("User-Agent");
var signature = GetHeaderOrThrow(EtnConstants.EtnSignatureRequestHeader);
_logger.LogTrace("Validating payload {0} ", payload);
if (isTesting)
{
userAgent = "Electroneum";
}
var payloadResult = await _webhookValidator.ValidateEtnWebHookPayloadAsync(userAgent, payload, signature);
if (payloadResult != null)
{
// success result
// log and store in database table somewhere
_logger.LogInformation($"[Test:{isTesting}] Payment Received: timestamp:{payloadResult.TimeStamp} id:{payloadResult.PaymentId} amt:{payloadResult.Amount} customer:{payloadResult.Customer} ref:{payloadResult.Ref} ");
// handle fulfulment process
}
return(payloadResult);
}
/// <summary>
/// Test webhook is working and validating
/// </summary>
/// <returns></returns>
public IActionResult Index()
{
var etnPayload = new EtnPayload()
{
Amount = 1,
Customer = "*****@*****.**"
};
return(View(etnPayload));
}
public async Task <IActionResult> PostEtnWebHook(EtnPayload payload)
{
try
{
var payloadResult = await ValidatePayload(payload);
}
catch (VendorException vex)
{
ModelState.AddModelError("", vex.Message);
return(new BadRequestObjectResult(ModelState));
}
return(new OkResult());
}
public async Task <(string json, string signature)> CreateFreshPayLoadAndSigAsync()
{
var p = new EtnPayload()
{
PaymentId = Guid.NewGuid().ToString(),
Amount = 20,
Customer = "*****@*****.**",
Key = EtnVendorApiKey,
Ref = "internalref",
TimeStamp = DateTime.Now
};
var sig = await CreateVendor().GenerateSignature(p);
return(JsonConvert.SerializeObject(p), sig);
}
public async Task <IActionResult> Index(EtnPayload model)
{
model.Key = _outletOptions.EtnVendorApiKey;
model.TimeStamp = DateTime.Now;
var sig = await _vendor.GenerateSignature(model);
Request.Headers.Add(EtnConstants.EtnSignatureRequestHeader, new StringValues(sig));
Request.Headers.Add("X-ETN-TESTING", GetEtnXTestingSig());
//Request.Headers.FirstOrDefault(x=>x.Key=="User-Agent").Value = new StringValues("Electroneum/0.1.0 (+https://electroneum.com/instant-payments)");
try
{
var payloadResult = await ValidatePayload(model);
ViewBag.IsValidPayload = true;
}
catch (VendorException vex)
{
ModelState.AddModelError("", vex.Message);
}
return(View(model));
}
