std::error_code createTransfers(
const AccountKeys& account,
const TransactionBlockInfo& blockInfo,
const ITransactionReader& tx,
const std::vector<uint32_t>& outputs,
const std::vector<uint32_t>& globalIdxs,
std::vector<TransactionOutputInformationIn>& transfers) {
auto txPubKey = tx.getTransactionPublicKey();
for (auto idx : outputs) {
if (idx >= tx.getOutputCount()) {
return std::make_error_code(std::errc::argument_out_of_domain);
}
auto outType = tx.getOutputType(size_t(idx));
if (
outType != TransactionTypes::OutputType::Key) {
continue;
}
TransactionOutputInformationIn info;
info.type = outType;
info.transactionPublicKey = txPubKey;
info.outputInTransaction = idx;
info.globalOutputIndex = (blockInfo.height == WALLET_UNCONFIRMED_TRANSACTION_HEIGHT) ?
UNCONFIRMED_TRANSACTION_GLOBAL_OUTPUT_INDEX : globalIdxs[idx];
if (outType == TransactionTypes::OutputType::Key) {
uint64_t amount;
KeyOutput out;
tx.getOutput(idx, out, amount);
CryptoNote::KeyPair in_ephemeral;
CryptoNote::generate_key_image_helper(
account,
txPubKey,
idx,
in_ephemeral,
info.keyImage);
assert(out.key == reinterpret_cast<const PublicKey&>(in_ephemeral.publicKey));
info.amount = amount;
info.outputKey = out.key;
}
transfers.push_back(info);
}
return std::error_code();
}
std::error_code TransfersConsumer::processOutputs(const BlockInfo& blockInfo, TransfersSubscription& sub,
const ITransactionReader& tx, const std::vector<uint32_t>& outputs, const std::vector<uint64_t>& globalIdxs) {
if (blockInfo.height != UNCONFIRMED_TRANSACTION_HEIGHT) {
TransactionInformation subscribtionTxInfo;
int64_t txBalance;
if (sub.getContainer().getTransactionInformation(tx.getTransactionHash(), subscribtionTxInfo, txBalance)) {
if (subscribtionTxInfo.blockHeight == UNCONFIRMED_TRANSACTION_HEIGHT) {
// pool->blockchain
sub.markTransactionConfirmed(blockInfo, tx.getTransactionHash(), globalIdxs);
return std::error_code();
} else {
// - Subscription already has this transaction as confirmed, so why are we here?
// - Because, for instance, some another subscription doesn't have this transactions, so it is given to us again.
return std::error_code();
}
}
}
std::vector<TransactionOutputInformationIn> transfers;
auto txPubKey = tx.getTransactionPublicKey();
for (auto idx : outputs) {
if (idx >= tx.getOutputCount()) {
return std::make_error_code(std::errc::argument_out_of_domain);
}
auto outType = tx.getOutputType(size_t(idx));
if (
outType != TransactionTypes::OutputType::Key &&
outType != TransactionTypes::OutputType::Multisignature) {
continue;
}
TransactionOutputInformationIn info;
info.type = outType;
info.transactionPublicKey = txPubKey;
info.outputInTransaction = idx;
info.globalOutputIndex =
(blockInfo.height == UNCONFIRMED_TRANSACTION_HEIGHT) ?
UNCONFIRMED_TRANSACTION_GLOBAL_OUTPUT_INDEX :
globalIdxs[idx];
if (outType == TransactionTypes::OutputType::Key) {
TransactionTypes::OutputKey out;
tx.getOutput(idx, out);
cryptonote::KeyPair in_ephemeral;
cryptonote::generate_key_image_helper(
reinterpret_cast<const cryptonote::account_keys&>(sub.getKeys()),
reinterpret_cast<const crypto::public_key&>(txPubKey),
idx,
in_ephemeral,
reinterpret_cast<crypto::key_image&>(info.keyImage));
assert(out.key == reinterpret_cast<const PublicKey&>(in_ephemeral.pub));
info.amount = out.amount;
info.outputKey = out.key;
} else if (outType == TransactionTypes::OutputType::Multisignature) {
TransactionTypes::OutputMultisignature out;
tx.getOutput(idx, out);
info.amount = out.amount;
info.requiredSignatures = out.requiredSignatures;
}
transfers.push_back(info);
}
sub.addTransaction(blockInfo, tx, transfers);
return std::error_code();
}