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set initial fee for rbf tx to satisfy minimum relay requirements

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This commit is contained in:
Craig Raw 2023-07-11 09:50:19 +02:00
parent ebfdfc0c9f
commit af9fb8694e
1 changed files with 13 additions and 1 deletions
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14
src/main/java/com/sparrowwallet/sparrow/control/EntryCell.java
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@ -243,6 +243,11 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
long changeTotal = ourOutputs.stream().mapToLong(TransactionOutput::getValue).sum() - consolidationOutputs.stream().mapToLong(TransactionOutput::getValue).sum(); long changeTotal = ourOutputs.stream().mapToLong(TransactionOutput::getValue).sum() - consolidationOutputs.stream().mapToLong(TransactionOutput::getValue).sum();
Transaction tx = blockTransaction.getTransaction(); Transaction tx = blockTransaction.getTransaction();
double vSize = tx.getVirtualSize(); double vSize = tx.getVirtualSize();
if(changeTotal == 0) {
//Add change output length to vSize if change was not present on the original transaction
TransactionOutput changeOutput = new TransactionOutput(new Transaction(), 1L, transactionEntry.getWallet().getFreshNode(KeyPurpose.CHANGE).getOutputScript());
vSize += changeOutput.getLength();
}
int inputSize = tx.getInputs().get(0).getLength() + (tx.getInputs().get(0).hasWitness() ? tx.getInputs().get(0).getWitness().getLength() / Transaction.WITNESS_SCALE_FACTOR : 0); int inputSize = tx.getInputs().get(0).getLength() + (tx.getInputs().get(0).hasWitness() ? tx.getInputs().get(0).getWitness().getLength() / Transaction.WITNESS_SCALE_FACTOR : 0);
List<BlockTransactionHashIndex> walletUtxos = new ArrayList<>(transactionEntry.getWallet().getSpendableUtxos(blockTransaction).keySet()); List<BlockTransactionHashIndex> walletUtxos = new ArrayList<>(transactionEntry.getWallet().getSpendableUtxos(blockTransaction).keySet());
//Remove the UTXOs we are respending //Remove the UTXOs we are respending
@ -256,6 +261,13 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
vSize += inputSize; vSize += inputSize;
} }
Long fee = blockTransaction.getFee();
if(fee != null) {
//Replacement tx fees must be greater than the original tx fees by its minimum relay cost
fee += (long)Math.ceil(vSize * AppServices.getMinimumRelayFeeRate());
}
Long rbfFee = fee;
List<TransactionOutput> externalOutputs = new ArrayList<>(blockTransaction.getTransaction().getOutputs()); List<TransactionOutput> externalOutputs = new ArrayList<>(blockTransaction.getTransaction().getOutputs());
externalOutputs.removeAll(ourOutputs); externalOutputs.removeAll(ourOutputs);
externalOutputs.addAll(consolidationOutputs); externalOutputs.addAll(consolidationOutputs);
@ -319,7 +331,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
} }
EventManager.get().post(new SendActionEvent(transactionEntry.getWallet(), utxos)); EventManager.get().post(new SendActionEvent(transactionEntry.getWallet(), utxos));
Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(transactionEntry.getWallet(), utxos, payments, opReturns.isEmpty() ? null : opReturns, blockTransaction.getFee(), true, blockTransaction))); Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(transactionEntry.getWallet(), utxos, payments, opReturns.isEmpty() ? null : opReturns, rbfFee, true, blockTransaction)));
} }
private static Double getMaxFeeRate() { private static Double getMaxFeeRate() {