Example #1
0
        private void ValidateTransaction(TxWithPrevOutputs loadedTx)
        {
            try
            {
                var chainedHeader = loadedTx.ChainedHeader;
                var transaction   = loadedTx.Transaction;
                var txIndex       = loadedTx.TxIndex;
                var prevTxOutputs = loadedTx.PrevTxOutputs;

                this.rules.ValidateTransaction(chainedHeader, transaction, txIndex, prevTxOutputs);
            }
            catch (Exception e)
            {
                this.txValidatorExceptions.Add(e);
            }
        }
Example #2
0
        private TxWithPrevOutputs LoadPendingTx(TxWithPrevOutputKeys pendingTx, ConcurrentDictionary <UInt256, Transaction> txCache)
        {
            try
            {
                var txIndex       = pendingTx.TxIndex;
                var transaction   = pendingTx.Transaction;
                var chainedHeader = pendingTx.ChainedHeader;
                var spentTxes     = pendingTx.PrevOutputTxKeys;

                var prevTxOutputs = ImmutableArray.CreateBuilder <TxOutput>(transaction.Inputs.Length);

                // load previous transactions for each input, unless this is a coinbase transaction
                if (txIndex > 0)
                {
                    for (var inputIndex = 0; inputIndex < transaction.Inputs.Length; inputIndex++)
                    {
                        var input = transaction.Inputs[inputIndex];

                        Transaction cachedPrevTx;
                        if (txCache.TryGetValue(input.PreviousTxOutputKey.TxHash, out cachedPrevTx))
                        {
                            var prevTxOutput = cachedPrevTx.Outputs[input.PreviousTxOutputKey.TxOutputIndex.ToIntChecked()];
                            prevTxOutputs.Add(prevTxOutput);
                        }
                        else
                        {
                            var spentTx = spentTxes[inputIndex];

                            Transaction prevTx;
                            if (this.coreStorage.TryGetTransaction(spentTx.BlockHash, spentTx.TxIndex, out prevTx))
                            {
                                if (input.PreviousTxOutputKey.TxHash != prevTx.Hash)
                                {
                                    throw new Exception("TODO");
                                }

                                txCache.TryAdd(prevTx.Hash, prevTx);

                                var prevTxOutput = prevTx.Outputs[input.PreviousTxOutputKey.TxOutputIndex.ToIntChecked()];
                                prevTxOutputs.Add(prevTxOutput);
                            }
                            else
                            {
                                throw new Exception("TODO");
                            }
                        }
                    }

                    Debug.Assert(prevTxOutputs.Count == transaction.Inputs.Length);
                }

                var txWithPrevOutputs = new TxWithPrevOutputs(txIndex, transaction, chainedHeader, prevTxOutputs.ToImmutableArray());
                return(txWithPrevOutputs);
            }
            catch (Exception e)
            {
                this.txLoaderExceptions.Add(e);
                //TODO
                return(null);
            }
        }