Git-Mirrors/haveno
1
0
Fork 0
mirror of https://github.com/haveno-dex/haveno.git synced 2025-08-14 09:25:37 -04:00
Code Issues Projects Releases Packages Wiki Activity

trade fees are adjustable and persisted in offer payload

Browse source
This commit is contained in:
woodser 2024-04-07 08:12:23 -04:00
parent 59fbd805a5
commit 7d7660414a
73 changed files with 539 additions and 542 deletions
Download patch file Download diff file Expand all files Collapse all files

97
core/src/main/java/haveno/core/xmr/wallet/XmrWalletService.java
View file

@ -532,20 +532,21 @@ public class XmrWalletService {
/**
* Create the reserve tx and freeze its inputs. The full amount is returned
* to the sender's payout address less the security deposit and mining fee.
* to the sender's payout address less the penalty and mining fees.
*
* @param penaltyFee penalty fee for breaking protocol
* @param tradeFee trade fee
* @param sendAmount amount to give peer
* @param sendAmount amount to send peer
* @param securityDeposit security deposit amount
* @param returnAddress return address for reserved funds
* @param reserveExactAmount specifies to reserve the exact input amount
* @param preferredSubaddressIndex preferred source subaddress to spend from (optional)
* @return a transaction to reserve a trade
*/
public MoneroTxWallet createReserveTx(BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String returnAddress, boolean reserveExactAmount, Integer preferredSubaddressIndex) {
public MoneroTxWallet createReserveTx(BigInteger penaltyFee, BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String returnAddress, boolean reserveExactAmount, Integer preferredSubaddressIndex) {
log.info("Creating reserve tx with preferred subaddress index={}, return address={}", preferredSubaddressIndex, returnAddress);
long time = System.currentTimeMillis();
MoneroTxWallet reserveTx = createTradeTx(tradeFee, sendAmount, securityDeposit, returnAddress, reserveExactAmount, preferredSubaddressIndex);
MoneroTxWallet reserveTx = createTradeTx(penaltyFee, tradeFee, sendAmount, securityDeposit, returnAddress, reserveExactAmount, preferredSubaddressIndex);
log.info("Done creating reserve tx in {} ms", System.currentTimeMillis() - time);
return reserveTx;
}
@ -568,18 +569,18 @@ public class XmrWalletService {
// create deposit tx
String multisigAddress = trade.getProcessModel().getMultisigAddress();
BigInteger tradeFee = trade instanceof MakerTrade ? trade.getOffer().getMakerFee() : trade.getTakerFee();
BigInteger tradeFee = trade instanceof MakerTrade ? trade.getMakerFee() : trade.getTakerFee();
BigInteger sendAmount = trade instanceof BuyerTrade ? BigInteger.ZERO : trade.getAmount();
BigInteger securityDeposit = trade instanceof BuyerTrade ? trade.getBuyerSecurityDepositBeforeMiningFee() : trade.getSellerSecurityDepositBeforeMiningFee();
long time = System.currentTimeMillis();
log.info("Creating deposit tx with multisig address={}", multisigAddress);
MoneroTxWallet depositTx = createTradeTx(tradeFee, sendAmount, securityDeposit, multisigAddress, reserveExactAmount, preferredSubaddressIndex);
MoneroTxWallet depositTx = createTradeTx(null, tradeFee, sendAmount, securityDeposit, multisigAddress, reserveExactAmount, preferredSubaddressIndex);
log.info("Done creating deposit tx for trade {} {} in {} ms", trade.getClass().getSimpleName(), trade.getId(), System.currentTimeMillis() - time);
return depositTx;
}
}
private MoneroTxWallet createTradeTx(BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String address, boolean reserveExactAmount, Integer preferredSubaddressIndex) {
private MoneroTxWallet createTradeTx(BigInteger penaltyFee, BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String address, boolean reserveExactAmount, Integer preferredSubaddressIndex) {
synchronized (walletLock) {
MoneroWallet wallet = getWallet();
@ -604,27 +605,31 @@ public class XmrWalletService {
// first try preferred subaddressess
for (int i = 0; i < subaddressIndices.size(); i++) {
try {
return createTradeTxFromSubaddress(tradeFee, sendAmount, securityDeposit, address, reserveExactAmount, subaddressIndices.get(i));
return createTradeTxFromSubaddress(penaltyFee, tradeFee, sendAmount, securityDeposit, address, reserveExactAmount, subaddressIndices.get(i));
} catch (Exception e) {
if (i == subaddressIndices.size() - 1 && reserveExactAmount) throw e; // throw if no subaddress with exact output
}
}
// try any subaddress
return createTradeTxFromSubaddress(tradeFee, sendAmount, securityDeposit, address, reserveExactAmount, null);
return createTradeTxFromSubaddress(penaltyFee, tradeFee, sendAmount, securityDeposit, address, reserveExactAmount, null);
}
}
private MoneroTxWallet createTradeTxFromSubaddress(BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String address, boolean reserveExactAmount, Integer subaddressIndex) {
private MoneroTxWallet createTradeTxFromSubaddress(BigInteger penaltyFee, BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String address, boolean reserveExactAmount, Integer subaddressIndex) {
// create tx
MoneroTxWallet tradeTx = wallet.createTx(new MoneroTxConfig()
boolean isDepositTx = penaltyFee == null;
BigInteger feeAmount = isDepositTx ? tradeFee : penaltyFee;
BigInteger transferAmount = isDepositTx ? sendAmount.add(securityDeposit) : sendAmount.add(securityDeposit).add(tradeFee).subtract(penaltyFee);
MoneroTxConfig txConfig = new MoneroTxConfig()
.setAccountIndex(0)
.setSubaddressIndices(subaddressIndex)
.addDestination(HavenoUtils.getTradeFeeAddress(), tradeFee)
.addDestination(address, sendAmount.add(securityDeposit))
.setSubtractFeeFrom(1)
.setPriority(XmrWalletService.PROTOCOL_FEE_PRIORITY)); // pay fee from security deposit
.addDestination(address, transferAmount)
.setSubtractFeeFrom(0) // pay fee from transfer amount
.setPriority(XmrWalletService.PROTOCOL_FEE_PRIORITY);
if (!BigInteger.valueOf(0).equals(feeAmount)) txConfig.addDestination(HavenoUtils.getTradeFeeAddress(), feeAmount);
MoneroTxWallet tradeTx = wallet.createTx(txConfig);
// freeze inputs
List<String> keyImages = new ArrayList<String>();
@ -639,6 +644,7 @@ public class XmrWalletService {
* The transaction is submitted to the pool then flushed without relaying.
*
* @param offerId id of offer to verify trade tx
* @param penaltyFee penalty fee for breaking protocol
* @param tradeFee trade fee
* @param sendAmount amount to give peer
* @param securityDeposit security deposit amount
@ -647,9 +653,9 @@ public class XmrWalletService {
* @param txHex transaction hex
* @param txKey transaction key
* @param keyImages expected key images of inputs, ignored if null
* @return tuple with the verified tx and its actual security deposit
* @return tuple with the verified tx and the actual security deposit
*/
public Tuple2<MoneroTx, BigInteger> verifyTradeTx(String offerId, BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String address, String txHash, String txHex, String txKey, List<String> keyImages) {
public Tuple2<MoneroTx, BigInteger> verifyTradeTx(String offerId, BigInteger penaltyFee, BigInteger tradeFee, BigInteger sendAmount, BigInteger securityDeposit, String address, String txHash, String txHex, String txKey, List<String> keyImages) {
if (txHash == null) throw new IllegalArgumentException("Cannot verify trade tx with null id");
MoneroDaemonRpc daemon = getDaemon();
MoneroWallet wallet = getWallet();
@ -681,39 +687,45 @@ public class XmrWalletService {
if (!BigInteger.ZERO.equals(tx.getUnlockTime())) throw new RuntimeException("Unlock height must be 0");
// verify miner fee
BigInteger feeEstimate = getElevatedFeeEstimate(tx.getWeight());
double feeDiff = tx.getFee().subtract(feeEstimate).abs().doubleValue() / feeEstimate.doubleValue();
if (feeDiff > MINER_FEE_TOLERANCE) throw new Error("Miner fee is not within " + (MINER_FEE_TOLERANCE * 100) + "% of estimated fee, expected " + feeEstimate + " but was " + tx.getFee());
log.info("Trade tx fee {} is within tolerance, diff%={}", tx.getFee(), feeDiff);
BigInteger minerFeeEstimate = getElevatedFeeEstimate(tx.getWeight());
double minerFeeDiff = tx.getFee().subtract(minerFeeEstimate).abs().doubleValue() / minerFeeEstimate.doubleValue();
if (minerFeeDiff > MINER_FEE_TOLERANCE) throw new Error("Miner fee is not within " + (MINER_FEE_TOLERANCE * 100) + "% of estimated fee, expected " + minerFeeEstimate + " but was " + tx.getFee());
log.info("Trade tx fee {} is within tolerance, diff%={}", tx.getFee(), minerFeeDiff);
// verify transfer proof to fee address
MoneroCheckTx tradeFeeCheck = wallet.checkTxKey(txHash, txKey, HavenoUtils.getTradeFeeAddress());
if (!tradeFeeCheck.isGood()) throw new RuntimeException("Invalid proof to trade fee address");
// verify proof to fee address
MoneroCheckTx feeCheck = wallet.checkTxKey(txHash, txKey, HavenoUtils.getTradeFeeAddress());
if (!feeCheck.isGood()) throw new RuntimeException("Invalid proof to trade fee address");
// verify transfer proof to address
// verify proof to transfer address
MoneroCheckTx transferCheck = wallet.checkTxKey(txHash, txKey, address);
if (!transferCheck.isGood()) throw new RuntimeException("Invalid proof to transfer address");
// collect actual trade fee, send amount, and security deposit
BigInteger actualTradeFee = tradeFeeCheck.getReceivedAmount();
actualSecurityDeposit = transferCheck.getReceivedAmount().subtract(sendAmount);
BigInteger actualSendAmount = transferCheck.getReceivedAmount().subtract(actualSecurityDeposit);
// verify fee and transfer amounts
BigInteger actualFee = feeCheck.getReceivedAmount();
BigInteger actualTransferAmount = transferCheck.getReceivedAmount();
boolean isDepositTx = penaltyFee == null;
if (isDepositTx) {
// verify trade fee
if (actualTradeFee.compareTo(tradeFee) < 0) {
throw new RuntimeException("Insufficient trade fee, expected=" + tradeFee + ", actual=" + actualTradeFee + ", transfer address check=" + JsonUtils.serialize(transferCheck) + ", trade fee address check=" + JsonUtils.serialize(tradeFeeCheck));
// verify trade fee
if (!actualFee.equals(tradeFee)) throw new RuntimeException("Invalid trade fee amount, expected " + tradeFee + " but was " + actualFee);
// verify multisig deposit amount
BigInteger expectedTransferAmount = sendAmount.add(securityDeposit).subtract(tx.getFee());
if (!actualTransferAmount.equals(expectedTransferAmount)) throw new RuntimeException("Invalid multisig deposit amount, expected " + expectedTransferAmount + " but was " + actualTransferAmount);
actualSecurityDeposit = actualTransferAmount.subtract(sendAmount);
} else {
// verify penalty fee
if (!actualFee.equals(penaltyFee)) throw new RuntimeException("Invalid penalty fee amount, expected " + penaltyFee + " but was " + actualFee);
// verify return amount
BigInteger expectedTransferAmount = sendAmount.add(securityDeposit).add(tradeFee).subtract(penaltyFee).subtract(tx.getFee());
if (!actualTransferAmount.equals(expectedTransferAmount)) throw new RuntimeException("Invalid return amount, expected " + expectedTransferAmount + " but was " + actualTransferAmount);
actualSecurityDeposit = actualTransferAmount.subtract(sendAmount).subtract(tradeFee);
}
// verify send amount
if (!actualSendAmount.equals(sendAmount)) {
throw new RuntimeException("Unexpected send amount, expected " + sendAmount + " but was " + actualSendAmount);
}
// verify security deposit
BigInteger expectedSecurityDeposit = securityDeposit.subtract(tx.getFee()); // fee is paid from security deposit
if (!actualSecurityDeposit.equals(expectedSecurityDeposit)) {
throw new RuntimeException("Unexpected security deposit amount, expected " + expectedSecurityDeposit + " but was " + actualSecurityDeposit);
}
// return the result
return new Tuple2<>(tx, actualSecurityDeposit);
} catch (Exception e) {
log.warn("Error verifying trade tx with offer id=" + offerId + (tx == null ? "" : ", tx=" + tx) + ": " + e.getMessage());
throw e;
@ -725,7 +737,6 @@ public class XmrWalletService {
throw err.getCode().equals(-32601) ? new RuntimeException("Failed to flush tx from pool. Arbitrator must use trusted, unrestricted daemon") : err;
}
}
return new Tuple2<>(tx, actualSecurityDeposit);
}
}