public static Dictionary <string, Balance> GetUsedBalances(ExchangeSettings settings, ViaJsonRpc via, Exchange xch)
{
var balances = via.BalanceQuery(xch.Id);
foreach (var key in balances.Keys.ToList())
{
if (!settings.Assets.ContainsKey(key))
{
balances.Remove(key);
}
}
return(balances);
}
public static (bool success, string error) ValidateOrderParams(ExchangeSettings settings, ApiOrderCreateMarket model, string price, bool marketOrder = false)
{
// check market exists
if (model.Market == null || !settings.Markets.ContainsKey(model.Market))
{
return(false, "Market does not exist");
}
// check amount exists
if (model.Amount == null)
{
return(false, "Amount not present");
}
// initialize amount vars for further validation
var amount = decimal.Parse(model.Amount);
var amountInterval = decimal.Parse(settings.Markets[model.Market].AmountInterval);
// check amount is greater then amountInterval
if (amount < amountInterval)
{
return(false, $"Amount is less then {amountInterval}");
}
// check amonut is a multiple of the amount interval
if ((amount / amountInterval) % 1 != 0)
{
return(false, $"Amount is not a multiple of {amountInterval}");
}
if (!marketOrder)
{
// check price exists
if (price == null)
{
return(false, "Price not present");
}
// initialize price vars for further validation
var priceDec = decimal.Parse(price);
var priceInterval = decimal.Parse(settings.Markets[model.Market].PriceInterval);
// check price is greater then priceInterval
if (priceDec < priceInterval)
{
return(false, $"Price is less then {priceInterval}");
}
// check price is a multiple of the price interval
if ((priceDec / priceInterval) % 1 != 0)
{
return(false, $"Price is not a multiple of {priceInterval}");
}
}
return(true, null);
}
public static viafront3.Models.ApiViewModels.ApiFiatPayoutRequest CreateFiatPayoutRequest(ILogger logger, ExchangeSettings settings, FiatProcessorSettings fiatSettings, string token, string asset, decimal amount, string account_number, string email)
{
var cents = amount * Utils.IntPow(10, settings.Assets[asset].Decimals);
var centsInt = Convert.ToInt64(cents);
// call payment server to create request
var jsonBody = JsonConvert.SerializeObject(new { api_key = fiatSettings.FiatServerApiKey, token = token, asset = asset, amount = centsInt, account_number = account_number, account_name = email, reference = fiatSettings.PayoutsReference, code = token });
var response = ServiceRequest(fiatSettings.FiatServerUrl, "payout_create", fiatSettings.FiatServerSecret, jsonBody);
if (response.IsSuccessful)
{
var json = JsonConvert.DeserializeObject <Dictionary <string, string> >(response.Content);
if (json.ContainsKey("status"))
{
var status = json["status"];
// return to user
var model = new viafront3.Models.ApiViewModels.ApiFiatPayoutRequest
{
Token = token,
Status = status,
Asset = asset,
Amount = amount,
};
return(model);
}
}
else
{
logger.LogError($"fiat payment request ({fiatSettings.FiatServerUrl}) failed with http statuscode: {response.StatusCode}");
}
return(null);
}
static void ProcessOrder(ApplicationDbContext context, UserManager <ApplicationUser> userManager, ExchangeSettings settings, IEmailSender emailSender, string json)
{
// parse order event
var parts = JsonConvert.DeserializeObject <Dictionary <string, object> >(json);
var evt = (OrderEvent)(long)parts["event"];
var stock = (string)parts["stock"];
var money = (string)parts["money"];
var order = JsonConvert.DeserializeObject <Order>(((Newtonsoft.Json.Linq.JObject)parts["order"]).ToString());
Console.WriteLine($":: order event :: {evt} - {stock}/{money} (user id: {order.user}, id: {order.id}, type: {order.type}, side: {order.side}, amount: {order.amount}, price: {order.price}, left: {order.left}");
// find user who owns the order
var user = ApplicationUser.GetUserFromExchangeId(context, userManager, order.user);
if (user == null)
{
Console.WriteLine($":: ERROR :: user for exchange id {order.user} not found");
return;
}
// send email to user
if (user.Email != null)
{
try
{
switch (evt)
{
case OrderEvent.ORDER_EVENT_PUT:
if (order.type == OrderType.Limit)
{
emailSender.SendEmailLimitOrderCreatedAsync(user.Email, order.market, order.side.ToString(), order.amount, stock, order.price, money);
}
else
{
emailSender.SendEmailMarketOrderCreatedAsync(user.Email, order.market, order.side.ToString(), order.amount, stock);
}
break;
case OrderEvent.ORDER_EVENT_UPDATE:
if (order.type == OrderType.Limit)
{
emailSender.SendEmailLimitOrderUpdatedAsync(user.Email, order.market, order.side.ToString(), order.amount, stock, order.price, money, order.left);
}
else
{
emailSender.SendEmailMarketOrderUpdatedAsync(user.Email, order.market, order.side.ToString(), order.amount, stock, order.left);
}
break;
case OrderEvent.ORDER_EVENT_FINISH:
var amountInterval = decimal.Parse(settings.Markets[order.market].AmountInterval);
if (order.type == OrderType.Limit)
{
emailSender.SendEmailLimitOrderFinishedAsync(user.Email, order.market, order.side.ToString(), order.amount, stock, order.price, money, order.left, amountInterval);
}
else
{
emailSender.SendEmailMarketOrderFinishedAsync(user.Email, order.market, order.side.ToString(), order.amount, stock, order.left, amountInterval);
}
break;
}
}
catch (Exception ex)
{
Console.WriteLine($":: ERROR sending email - '{ex.Message}'");
}
Console.WriteLine($":: email sent to {user.Email}");
}
}
public static async Task <AddressIncommingTxs> CheckAddressIncommingTxsAndUpdateWalletAndExchangeBalance(IEmailSender emailSender, ExchangeSettings settings, string asset, IWallet wallet, ChainAssetSettings chainAssetSettings, ApplicationUser user, WalletAddr addr)
{
// create and test backend connection
var via = new ViaJsonRpc(settings.AccessHttpUrl); //TODO: move this to a ViaRpcProvider in /Services (like IWalletProvider)
via.BalanceQuery(1);
// get wallet transactions
var newlySeenTxs = new List <WalletTx>();
var incommingTxs = wallet.GetAddrTransactions(addr.Address);
if (incommingTxs != null)
{
incommingTxs = incommingTxs.Where(t => t.Direction == WalletDirection.Incomming);
}
else
{
incommingTxs = new List <WalletTx>();
}
foreach (var tx in incommingTxs)
{
if (tx.State == WalletTxState.None)
{
// send email: deposit detected
wallet.SeenTransaction(tx);
newlySeenTxs.Add(tx);
if (!string.IsNullOrEmpty(user.Email))
{
await emailSender.SendEmailChainDepositDetectedAsync(user.Email, asset, wallet.AmountToString(tx.AmountOutputs()), tx.ChainTx.TxId);
}
}
}
var unackedTxs = wallet.GetAddrUnacknowledgedTransactions(addr.Address);
if (unackedTxs != null)
{
unackedTxs = unackedTxs.Where(t => t.Direction == WalletDirection.Incomming && t.ChainTx.Confirmations >= chainAssetSettings.MinConf);
}
else
{
unackedTxs = new List <WalletTx>();
}
BigInteger newDeposits = 0;
foreach (var tx in unackedTxs)
{
newDeposits += tx.AmountOutputs();
// send email: deposit confirmed
await emailSender.SendEmailChainDepositConfirmedAsync(user.Email, asset, wallet.AmountToString(tx.AmountOutputs()), tx.ChainTx.TxId);
}
// ack txs and save wallet
IEnumerable <WalletTx> justAckedTxs = unackedTxs;
if (unackedTxs.Any())
{
justAckedTxs = new List <WalletTx>(unackedTxs); // wallet.Save will kill unackedTxs because they are no longer unacked
wallet.AcknowledgeTransactions(unackedTxs);
wallet.Save();
}
else if (newlySeenTxs.Any())
{
wallet.Save();
}
// register new deposits with the exchange backend
foreach (var tx in justAckedTxs)
{
var amount = wallet.AmountToString(tx.AmountOutputs());
var source = new Dictionary <string, object>();
source["txid"] = tx.ChainTx.TxId;
var businessId = tx.Id;
via.BalanceUpdateQuery(user.Exchange.Id, asset, "deposit", businessId, amount, source);
}
return(new AddressIncommingTxs {
IncommingTxs = incommingTxs, NewlySeenTxs = newlySeenTxs, JustAckedTxs = justAckedTxs, NewDeposits = newDeposits
});
}