public async Task <ActionResult> Create(string currency, string returnUrl)
{
var user = await UserManager.FindValidByIdAsync(User.Identity.GetUserId());
var currencyData = await CurrencyReader.GetCurrency(currency);
if (currencyData == null || user == null)
{
ViewBag.Message = $"Currency {currency} not found.";
return(View("Error"));
}
if (currencyData.Status == CurrencyStatus.Maintenance || currencyData.Status == CurrencyStatus.Offline)
{
ViewBag.HideSupportLink = true;
ViewBag.SubTitle = $"Status: {currencyData.Status}";
ViewBag.Message = $"Unfortunately we are unable to process your withdrawal at this time.<br /><br />Status: {currencyData.Status}<br />Reason: {(string.IsNullOrEmpty(currencyData.StatusMessage) ? "Unknown" : currencyData.StatusMessage)}";
return(View("Error"));
}
if (currencyData.CurrencyId == Constant.NZDT_ID && !UserVerificationReader.IsVerified(user.VerificationLevel))
{
return(View("NotVerified"));
}
return(View(await CreateWithdrawModel(user, new WithdrawCurrencyModel
{
Name = currencyData.Name,
Symbol = currencyData.Symbol,
ReturnUrl = GetLocalReturnUrl(returnUrl)
})));
}
public async Task <ActionResult> Create(WithdrawCurrencyModel model)
{
var currencyData = await CurrencyReader.GetCurrency(model.Symbol);
var user = await UserManager.FindValidByIdAsync(User.Identity.GetUserId());
if (currencyData == null || user == null)
{
ViewBag.Message = $"Currency {model.Symbol} not found.";
return(View("Error"));
}
if (currencyData.CurrencyId == Constant.NZDT_ID && !UserVerificationReader.IsVerified(user.VerificationLevel))
{
return(View("NotVerified"));
}
// Verify Address
var address = model.AddressData?.Trim();
if (string.IsNullOrEmpty(address))
{
address = model.SelectedAddress;
}
else if (currencyData.AddressType != AddressType.Standard)
{
if (currencyData.AddressType == AddressType.PaymentId && !CurrencyExtensions.IsValidPaymentId(model.AddressData2?.Trim()))
{
ModelState.AddModelError("AddressData2", $"Please enter a valid Cryptonote PaymentId.");
return(View(await CreateWithdrawModel(user, model)));
}
address = $"{model.AddressData?.Trim()}:{model.AddressData2?.Trim()}";
if (currencyData.Type == CurrencyType.Fiat)
{
address = address.TrimEnd(':');
}
}
if (string.IsNullOrEmpty(address))
{
ModelState.AddModelError(user.IsUnsafeWithdrawEnabled ? "AddressData" : "AddressBookError", $"Please enter a valid {model.Symbol} address");
return(View(await CreateWithdrawModel(user, model)));
}
// Verify Amount
var withdrawAmount = decimal.Round(model.Amount, currencyData.CurrencyDecimals);
if (withdrawAmount < currencyData.WithdrawMin || withdrawAmount >= currencyData.WithdrawMax)
{
ModelState.AddModelError("Amount", $"Withdrawal amount must be between {currencyData.WithdrawMin} {currencyData.Symbol} and {currencyData.WithdrawMax} {currencyData.Symbol}");
return(View(await CreateWithdrawModel(user, model)));
}
// Verify Two Factor
if (!await UserManager.VerifyUserTwoFactorCodeAsync(TwoFactorComponent.Withdraw, user.Id, model.Code1, model.Code2))
{
ModelState.AddModelError("TwoFactorError", "The TFA code entered was incorrect or has expired, please try again.");
return(View(await CreateWithdrawModel(user, model)));
}
// Create withdraw
var twoFactortoken = await GenerateUserTwoFactorTokenAsync(TwoFactorTokenType.WithdrawConfirm, user.Id);
var result = await WithdrawWriter.CreateWithdraw(User.Identity.GetUserId(), new CreateWithdrawModel
{
Address = address,
Amount = withdrawAmount,
CurrencyId = model.CurrencyId,
TwoFactorToken = twoFactortoken,
Type = WithdrawType.Normal,
});
if (!result.Success)
{
ModelState.AddModelError("Error", result.Message);
return(View(await CreateWithdrawModel(user, model)));
}
// Send Confirmation email
if (!user.DisableWithdrawEmailConfirmation)
{
await SendConfirmationEmail(user, model.Symbol, withdrawAmount - model.Fee, address, result.Result, twoFactortoken, currencyData.AddressType);
}
return(RedirectToAction("Summary", new { withdrawId = result.Result, returnUrl = GetLocalReturnUrl(model.ReturnUrl) }));
}
public async Task <ApiSubmitUserWithdrawResponse> SubmitUserWithdraw(ApiSubmitUserWithdrawRequest request)
{
var currency = request.CurrencyId.HasValue
? await CurrencyReader.GetCurrency(request.CurrencyId.Value).ConfigureAwait(false)
: await CurrencyReader.GetCurrency(request.Currency).ConfigureAwait(false);
if (currency == null)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = "Currency not found."
}
}
;
if (currency.Status == CurrencyStatus.Maintenance || currency.Status == CurrencyStatus.Offline || currency.Status == CurrencyStatus.NoConnections)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = $"Currency is currently not available for withdraw, Status: {currency.Status}"
}
}
;
if (request.Amount < currency.WithdrawMin)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = $"Withdraw amount is below the minimum, Minimum: {currency.WithdrawMin:F8} {currency.Symbol}"
}
}
;
if (request.Amount > currency.WithdrawMax)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = $"Withdraw amount is above the maximum, Maximum: {currency.WithdrawMax:F8} {currency.Symbol}"
}
}
;
var balance = await UserBalanceReader.GetBalance(request.UserId.ToString(), currency.CurrencyId).ConfigureAwait(false);
if (balance == null || request.Amount > balance.Available)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = "Insufficient funds."
}
}
;
var user = await UserReader.GetUserById(request.UserId.ToString()).ConfigureAwait(false);
if (user == null || !user.IsApiWithdrawEnabled)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = "Your API withdraw setting is currently disabled."
}
}
;
var address = request.Address;
if (currency.AddressType != AddressType.Standard)
{
address = $"{request.Address}:{request.PaymentId ?? string.Empty}";
}
if (currency.Type == CurrencyType.Fiat)
{
address = address.TrimEnd(':');
}
if (!user.IsApiUnsafeWithdrawEnabled)
{
using (var context = ExchangeDataContextFactory.CreateReadOnlyContext())
{
var validAddress = await context.AddressBook
.AsNoTracking()
.FirstOrDefaultAsync(x => x.UserId == request.UserId && x.CurrencyId == currency.CurrencyId && x.Address == address && x.IsEnabled).ConfigureAwait(false);
if (validAddress == null)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = $"Address does not exist in your secure Withdraw Address Book"
}
}
;
}
}
else
{
if (currency.CurrencyId == Constant.NZDT_ID && !UserVerificationReader.IsVerified(user.VerificationLevel))
{
return(new ApiSubmitUserWithdrawResponse {
Success = false, Error = $"Id verification required for NZDT services."
});
}
if (!await DepositService.ValidateAddress(currency.CurrencyId, address))
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = $"Invalid {currency.Symbol} address."
}
}
;
}
var response = await TradeService.CreateWithdraw(request.UserId.ToString(), new CreateWithdrawModel
{
Address = address,
Amount = Math.Max(0, request.Amount),
CurrencyId = balance.CurrencyId,
TwoFactorToken = string.Empty,
Type = WithdrawType.Normal
}, true).ConfigureAwait(false);
if (response.IsError)
{
return new ApiSubmitUserWithdrawResponse {
Success = false, Error = response.Error
}
}
;
return(new ApiSubmitUserWithdrawResponse
{
Success = true,
Data = response.WithdrawId
});
}