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Merge #12296: wallet: Only fee-bump non-conflicted/non-confirmed txes

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faca18dcf feebumper: Use PreconditionChecks to determine bump eligibility (MarcoFalke)
718f05cab move more bumpfee prechecks to feebumper::PreconditionChecks (Gregory Sanders)

Pull request description:

  This only affects the gui.

  Fee-bumping of transactions that are already confirmed or are already conflicted by other transactions should not be offered by the gui.

Tree-SHA512: 4acf8087c69fbe5bd67be0485cdb4055e985bbf84acc420aa786ad31e2dc6c2572baaac1d359af10a6907790f626edca690285d9a46ae5440900ea12624c634f
This commit is contained in:
Jonas Schnelli 2018-02-12 21:13:45 +10:30
parent c8b54b2044 faca18dcf4
commit 8e6f9f4ebc
No known key found for this signature in database
GPG key ID: 1EB776BB03C7922D
2 changed files with 27 additions and 20 deletions
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45
src/wallet/feebumper.cpp
View file

@ -65,16 +65,39 @@ static feebumper::Result PreconditionChecks(const CWallet* wallet, const CWallet
errors.push_back("Transaction has been mined, or is conflicted with a mined transaction");
return feebumper::Result::WALLET_ERROR;
}
if (!SignalsOptInRBF(*wtx.tx)) {
errors.push_back("Transaction is not BIP 125 replaceable");
return feebumper::Result::WALLET_ERROR;
}
if (wtx.mapValue.count("replaced_by_txid")) {
errors.push_back(strprintf("Cannot bump transaction %s which was already bumped by transaction %s", wtx.GetHash().ToString(), wtx.mapValue.at("replaced_by_txid")));
return feebumper::Result::WALLET_ERROR;
}
// check that original tx consists entirely of our inputs
// if not, we can't bump the fee, because the wallet has no way of knowing the value of the other inputs (thus the fee)
if (!wallet->IsAllFromMe(*wtx.tx, ISMINE_SPENDABLE)) {
errors.push_back("Transaction contains inputs that don't belong to this wallet");
return feebumper::Result::WALLET_ERROR;
}
return feebumper::Result::OK;
}
namespace feebumper {
bool TransactionCanBeBumped(CWallet* wallet, const uint256& txid)
bool TransactionCanBeBumped(const CWallet* wallet, const uint256& txid)
{
LOCK2(cs_main, wallet->cs_wallet);
const CWalletTx* wtx = wallet->GetWalletTx(txid);
return wtx && SignalsOptInRBF(*wtx->tx) && !wtx->mapValue.count("replaced_by_txid");
if (wtx == nullptr) return false;
std::vector<std::string> errors_dummy;
feebumper::Result res = PreconditionChecks(wallet, *wtx, errors_dummy);
return res == feebumper::Result::OK;
}
Result CreateTransaction(const CWallet* wallet, const uint256& txid, const CCoinControl& coin_control, CAmount total_fee, std::vector<std::string>& errors,
@ -94,23 +117,6 @@ Result CreateTransaction(const CWallet* wallet, const uint256& txid, const CCoin
return result;
}
if (!SignalsOptInRBF(*wtx.tx)) {
errors.push_back("Transaction is not BIP 125 replaceable");
return Result::WALLET_ERROR;
}
if (wtx.mapValue.count("replaced_by_txid")) {
errors.push_back(strprintf("Cannot bump transaction %s which was already bumped by transaction %s", txid.ToString(), wtx.mapValue.at("replaced_by_txid")));
return Result::WALLET_ERROR;
}
// check that original tx consists entirely of our inputs
// if not, we can't bump the fee, because the wallet has no way of knowing the value of the other inputs (thus the fee)
if (!wallet->IsAllFromMe(*wtx.tx, ISMINE_SPENDABLE)) {
errors.push_back("Transaction contains inputs that don't belong to this wallet");
return Result::WALLET_ERROR;
}
// figure out which output was change
// if there was no change output or multiple change outputs, fail
int nOutput = -1;
@ -228,6 +234,7 @@ Result CreateTransaction(const CWallet* wallet, const uint256& txid, const CCoin
}
}
return Result::OK;
}

2
src/wallet/feebumper.h
View file

@ -26,7 +26,7 @@ enum class Result
};
//! Return whether transaction can be bumped.
bool TransactionCanBeBumped(CWallet* wallet, const uint256& txid);
bool TransactionCanBeBumped(const CWallet* wallet, const uint256& txid);
//! Create bumpfee transaction.
Result CreateTransaction(const CWallet* wallet,