Пример #1
0
        private async Task <IEnumerable <AccountedPaymentEntity> > GetPaymentsWithTransaction(InvoiceEntity invoice)
        {
            var transactions = await _ExplorerClient.GetTransactions(invoice.Payments.Select(t => t.Outpoint.Hash).ToArray());

            var spentTxIn = new Dictionary <OutPoint, AccountedPaymentEntity>();
            var result    = invoice.Payments.Select(p => p.Outpoint).ToHashSet();
            List <AccountedPaymentEntity> payments = new List <AccountedPaymentEntity>();

            foreach (var payment in invoice.Payments)
            {
                TransactionResult tx;
                if (!transactions.TryGetValue(payment.Outpoint.Hash, out tx))
                {
                    result.Remove(payment.Outpoint);
                    continue;
                }
                AccountedPaymentEntity accountedPayment = new AccountedPaymentEntity()
                {
                    Confirmations = tx.Confirmations,
                    Transaction   = tx.Transaction,
                    Payment       = payment
                };
                payments.Add(accountedPayment);
                foreach (var txin in tx.Transaction.Inputs)
                {
                    if (!spentTxIn.TryAdd(txin.PrevOut, accountedPayment))
                    {
                        //We get a double spend
                        var existing = spentTxIn[txin.PrevOut];

                        //Take the most recent, the full node is already comparing fees correctly so we have the most likely to be confirmed
                        if (accountedPayment.Confirmations > 1 || existing.Payment.ReceivedTime < accountedPayment.Payment.ReceivedTime)
                        {
                            spentTxIn[txin.PrevOut] = accountedPayment;
                            result.Remove(existing.Payment.Outpoint);
                        }
                    }
                }
            }

            List <PaymentEntity> updated = new List <PaymentEntity>();
            var accountedPayments        = payments.Where(p =>
            {
                var accounted = result.Contains(p.Payment.Outpoint);
                if (p.Payment.Accounted != accounted)
                {
                    p.Payment.Accounted = accounted;
                    updated.Add(p.Payment);
                }
                return(accounted);
            }).ToArray();

            await _InvoiceRepository.UpdatePayments(payments);

            return(accountedPayments);
        }
        static void checkAllTransactionForInit(NBXplorerNetwork network, ExplorerClient client, Way.Lib.CLog log)
        {
            using (var db = new MainDB())
            {
                var allWalletInfos = db.WalletCyptoCoinInfo.Where(m => m.Currency == "BTC").ToArray();
                foreach (var walletinfo in allWalletInfos)
                {
                    var publicKey            = new ExtPubKey(walletinfo.Key2);
                    var userDerivationScheme = network.DerivationStrategyFactory.CreateDirectDerivationStrategy(publicKey, new DerivationStrategyOptions()
                    {
                        // Use non-segwit
                        Legacy = true
                    });
                    var lastResponse = client.GetTransactions(userDerivationScheme, null);

                    List <TransactionInformation> allTrans = new List <TransactionInformation>();
                    allTrans.AddRange(lastResponse.UnconfirmedTransactions.Transactions);
                    //为了防止程序关闭期间,有transaction发生,所以ConfirmedTransactions也要分析
                    allTrans.AddRange(lastResponse.ConfirmedTransactions.Transactions);

                    foreach (var payedTranInfo in allTrans)
                    {
                        var payedTranid = payedTranInfo.TransactionId.ToString();
                        if (payedTranInfo.Confirmations == 0)
                        {
                            log.Log($"received unconfirmed transaction:{payedTranid}");
                        }
                        else
                        {
                            log.Log($"received confirmed({payedTranInfo.Confirmations})");
                        }

                        checkTransaction(db, payedTranInfo.Transaction, payedTranInfo.Confirmations, log);
                    }
                }
            }
        }