{

// Call into TxToUniv() in bitcoin-common to decode the transaction hex.

//

// Blockchain contextual information (confirmations and blocktime) is not

// available to code in bitcoin-common, so we query them here and push the

// data into the returned UniValue.

TxToUniv(tx, uint256(), entry, true, RPCSerializationFlags());

if (!hashBlock.IsNull()) {

LOCK(cs_main);

entry.pushKV("blockhash", hashBlock.GetHex());

CBlockIndex* pindex = active_chainstate.m_blockman.LookupBlockIndex(hashBlock);

if (pindex) {

if (active_chainstate.m_chain.Contains(pindex)) {

entry.pushKV("confirmations", 1 + active_chainstate.m_chain.Height() - pindex->nHeight);

entry.pushKV("time", pindex->GetBlockTime());

entry.pushKV("blocktime", pindex->GetBlockTime());

}

else

entry.pushKV("confirmations", 0);

}

}

{

return {

{"inputs", RPCArg::Type::ARR, RPCArg::Optional::NO, "The inputs",

{

{"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",

{

{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},

{"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},

{"sequence", RPCArg::Type::NUM, RPCArg::DefaultHint{"depends on the value of the 'replaceable' and 'locktime' arguments"}, "The sequence number"},

},

},

},

},

{"outputs", RPCArg::Type::ARR, RPCArg::Optional::NO, "The outputs (key-value pairs), where none of the keys are duplicated.\n"

"That is, each address can only appear once and there can only be one 'data' object.\n"

"For compatibility reasons, a dictionary, which holds the key-value pairs directly, is also\n"

" accepted as second parameter.",

{

{"", RPCArg::Type::OBJ_USER_KEYS, RPCArg::Optional::OMITTED, "",

{

{"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "A key-value pair. The key (string) is the bitcoin address, the value (float or string) is the amount in " + CURRENCY_UNIT},

},

},

{"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",

{

{"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data"},

},

},

},

},

{"locktime", RPCArg::Type::NUM, RPCArg::Default{0}, "Raw locktime. Non-0 value also locktime-activates inputs"},

{"replaceable", RPCArg::Type::BOOL, RPCArg::Default{false}, "Marks this transaction as BIP125-replaceable.\n"

"Allows this transaction to be replaced by a transaction with higher fees. If provided, it is an error if explicit sequence numbers are incompatible."},

};

{

return RPCHelpMan{

"getrawtransaction",

"\nReturn the raw transaction data.\n"

"\nBy default, this call only returns a transaction if it is in the mempool. If -txindex is enabled\n"

"and no blockhash argument is passed, it will return the transaction if it is in the mempool or any block.\n"

"If a blockhash argument is passed, it will return the transaction if\n"

"the specified block is available and the transaction is in that block.\n"

"\nHint: Use gettransaction for wallet transactions.\n"

"\nIf verbose is 'true', returns an Object with information about 'txid'.\n"

"If verbose is 'false' or omitted, returns a string that is serialized, hex-encoded data for 'txid'.\n",

{

{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},

{"verbose", RPCArg::Type::BOOL, RPCArg::Default{false}, "If false, return a string, otherwise return a json object"},

{"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED_NAMED_ARG, "The block in which to look for the transaction"},

},

{

RPCResult{"if verbose is not set or set to false",

RPCResult::Type::STR, "data", "The serialized, hex-encoded data for 'txid'"

},

RPCResult{"if verbose is set to true",

RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::BOOL, "in_active_chain", /*optional=*/true, "Whether specified block is in the active chain or not (only present with explicit \"blockhash\" argument)"},

{RPCResult::Type::STR_HEX, "hex", "The serialized, hex-encoded data for 'txid'"},

{RPCResult::Type::STR_HEX, "txid", "The transaction id (same as provided)"},

{RPCResult::Type::STR_HEX, "hash", "The transaction hash (differs from txid for witness transactions)"},

{RPCResult::Type::NUM, "size", "The serialized transaction size"},

{RPCResult::Type::NUM, "vsize", "The virtual transaction size (differs from size for witness transactions)"},

{RPCResult::Type::NUM, "weight", "The transaction's weight (between vsize*4-3 and vsize*4)"},

{RPCResult::Type::NUM, "version", "The version"},

{RPCResult::Type::NUM_TIME, "locktime", "The lock time"},

{RPCResult::Type::ARR, "vin", "",

{

{RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR_HEX, "txid", "The transaction id"},

{RPCResult::Type::NUM, "vout", "The output number"},

{RPCResult::Type::OBJ, "scriptSig", "The script",

{

{RPCResult::Type::STR, "asm", "asm"},

{RPCResult::Type::STR_HEX, "hex", "hex"},

}},

{RPCResult::Type::NUM, "sequence", "The script sequence number"},

{RPCResult::Type::ARR, "txinwitness", /*optional=*/true, "",

{

{RPCResult::Type::STR_HEX, "hex", "hex-encoded witness data (if any)"},

}},

}},

}},

{RPCResult::Type::ARR, "vout", "",

{

{RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::NUM, "value", "The value in " + CURRENCY_UNIT},

{RPCResult::Type::NUM, "n", "index"},

{RPCResult::Type::OBJ, "scriptPubKey", "",

{

{RPCResult::Type::STR, "asm", "the asm"},

{RPCResult::Type::STR, "desc", "Inferred descriptor for the output"},

{RPCResult::Type::STR, "hex", "the hex"},

{RPCResult::Type::STR, "type", "The type, eg 'pubkeyhash'"},

{RPCResult::Type::STR, "address", /*optional=*/true, "The Bitcoin address (only if a well-defined address exists)"},

}},

}},

}},

{RPCResult::Type::STR_HEX, "blockhash", /*optional=*/true, "the block hash"},

{RPCResult::Type::NUM, "confirmations", /*optional=*/true, "The confirmations"},

{RPCResult::Type::NUM_TIME, "blocktime", /*optional=*/true, "The block time expressed in " + UNIX_EPOCH_TIME},

{RPCResult::Type::NUM, "time", /*optional=*/true, "Same as \"blocktime\""},

}

},

},

RPCExamples{

HelpExampleCli("getrawtransaction", "\"mytxid\"")

+ HelpExampleCli("getrawtransaction", "\"mytxid\" true")

+ HelpExampleRpc("getrawtransaction", "\"mytxid\", true")

+ HelpExampleCli("getrawtransaction", "\"mytxid\" false \"myblockhash\"")

+ HelpExampleCli("getrawtransaction", "\"mytxid\" true \"myblockhash\"")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

const NodeContext& node = EnsureAnyNodeContext(request.context);

ChainstateManager& chainman = EnsureChainman(node);

bool in_active_chain = true;

uint256 hash = ParseHashV(request.params[0], "parameter 1");

CBlockIndex* blockindex = nullptr;

if (hash == Params().GenesisBlock().hashMerkleRoot) {

// Special exception for the genesis block coinbase transaction

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "The genesis block coinbase is not considered an ordinary transaction and cannot be retrieved");

}

// Accept either a bool (true) or a num (>=1) to indicate verbose output.

bool fVerbose = false;

if (!request.params[1].isNull()) {

fVerbose = request.params[1].isNum() ? (request.params[1].get_int() != 0) : request.params[1].get_bool();

}

if (!request.params[2].isNull()) {

LOCK(cs_main);

uint256 blockhash = ParseHashV(request.params[2], "parameter 3");

blockindex = chainman.m_blockman.LookupBlockIndex(blockhash);

if (!blockindex) {

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block hash not found");

}

in_active_chain = chainman.ActiveChain().Contains(blockindex);

}

bool f_txindex_ready = false;

if (g_txindex && !blockindex) {

f_txindex_ready = g_txindex->BlockUntilSyncedToCurrentChain();

}

uint256 hash_block;

const CTransactionRef tx = GetTransaction(blockindex, node.mempool.get(), hash, Params().GetConsensus(), hash_block);

if (!tx) {

std::string errmsg;

if (blockindex) {

const bool block_has_data = WITH_LOCK(::cs_main, return blockindex->nStatus & BLOCK_HAVE_DATA);

if (!block_has_data) {

throw JSONRPCError(RPC_MISC_ERROR, "Block not available");

}

errmsg = "No such transaction found in the provided block";

} else if (!g_txindex) {

errmsg = "No such mempool transaction. Use -txindex or provide a block hash to enable blockchain transaction queries";

} else if (!f_txindex_ready) {

errmsg = "No such mempool transaction. Blockchain transactions are still in the process of being indexed";

} else {

errmsg = "No such mempool or blockchain transaction";

}

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, errmsg + ". Use gettransaction for wallet transactions.");

}

if (!fVerbose) {

return EncodeHexTx(*tx, RPCSerializationFlags());

}

UniValue result(UniValue::VOBJ);

if (blockindex) result.pushKV("in_active_chain", in_active_chain);

TxToJSON(*tx, hash_block, result, chainman.ActiveChainstate());

return result;

},

};

{

return RPCHelpMan{"gettxoutproof",

"\nReturns a hex-encoded proof that \"txid\" was included in a block.\n"

"\nNOTE: By default this function only works sometimes. This is when there is an\n"

"unspent output in the utxo for this transaction. To make it always work,\n"

"you need to maintain a transaction index, using the -txindex command line option or\n"

"specify the block in which the transaction is included manually (by blockhash).\n",

{

{"txids", RPCArg::Type::ARR, RPCArg::Optional::NO, "The txids to filter",

{

{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "A transaction hash"},

},

},

{"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED_NAMED_ARG, "If specified, looks for txid in the block with this hash"},

},

RPCResult{

RPCResult::Type::STR, "data", "A string that is a serialized, hex-encoded data for the proof."

},

RPCExamples{""},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

std::set<uint256> setTxids;

UniValue txids = request.params[0].get_array();

if (txids.empty()) {

throw JSONRPCError(RPC_INVALID_PARAMETER, "Parameter 'txids' cannot be empty");

}

for (unsigned int idx = 0; idx < txids.size(); idx++) {

auto ret = setTxids.insert(ParseHashV(txids[idx], "txid"));

if (!ret.second) {

throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid parameter, duplicated txid: ") + txids[idx].get_str());

}

}

CBlockIndex* pblockindex = nullptr;

uint256 hashBlock;

ChainstateManager& chainman = EnsureAnyChainman(request.context);

if (!request.params[1].isNull()) {

LOCK(cs_main);

hashBlock = ParseHashV(request.params[1], "blockhash");

pblockindex = chainman.m_blockman.LookupBlockIndex(hashBlock);

if (!pblockindex) {

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");

}

} else {

LOCK(cs_main);

CChainState& active_chainstate = chainman.ActiveChainstate();

// Loop through txids and try to find which block they're in. Exit loop once a block is found.

for (const auto& tx : setTxids) {

const Coin& coin = AccessByTxid(active_chainstate.CoinsTip(), tx);

if (!coin.IsSpent()) {

pblockindex = active_chainstate.m_chain[coin.nHeight];

break;

}

}

}

// Allow txindex to catch up if we need to query it and before we acquire cs_main.

if (g_txindex && !pblockindex) {

g_txindex->BlockUntilSyncedToCurrentChain();

}

LOCK(cs_main);

if (pblockindex == nullptr) {

const CTransactionRef tx = GetTransaction(/* block_index */ nullptr, /* mempool */ nullptr, *setTxids.begin(), Params().GetConsensus(), hashBlock);

if (!tx || hashBlock.IsNull()) {

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transaction not yet in block");

}

pblockindex = chainman.m_blockman.LookupBlockIndex(hashBlock);

if (!pblockindex) {

throw JSONRPCError(RPC_INTERNAL_ERROR, "Transaction index corrupt");

}

}

CBlock block;

if (!ReadBlockFromDisk(block, pblockindex, Params().GetConsensus())) {

throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");

}

unsigned int ntxFound = 0;

for (const auto& tx : block.vtx) {

if (setTxids.count(tx->GetHash())) {

ntxFound++;

}

}

if (ntxFound != setTxids.size()) {

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Not all transactions found in specified or retrieved block");

}

CDataStream ssMB(SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS);

CMerkleBlock mb(block, setTxids);

ssMB << mb;

std::string strHex = HexStr(ssMB);

return strHex;

},

};

{

return RPCHelpMan{"verifytxoutproof",

"\nVerifies that a proof points to a transaction in a block, returning the transaction it commits to\n"

"and throwing an RPC error if the block is not in our best chain\n",

{

{"proof", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex-encoded proof generated by gettxoutproof"},

},

RPCResult{

RPCResult::Type::ARR, "", "",

{

{RPCResult::Type::STR_HEX, "txid", "The txid(s) which the proof commits to, or empty array if the proof cannot be validated."},

}

},

RPCExamples{""},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

CDataStream ssMB(ParseHexV(request.params[0], "proof"), SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS);

CMerkleBlock merkleBlock;

ssMB >> merkleBlock;

UniValue res(UniValue::VARR);

std::vector<uint256> vMatch;

std::vector<unsigned int> vIndex;

if (merkleBlock.txn.ExtractMatches(vMatch, vIndex) != merkleBlock.header.hashMerkleRoot)

return res;

ChainstateManager& chainman = EnsureAnyChainman(request.context);

LOCK(cs_main);

const CBlockIndex* pindex = chainman.m_blockman.LookupBlockIndex(merkleBlock.header.GetHash());

if (!pindex || !chainman.ActiveChain().Contains(pindex) || pindex->nTx == 0) {

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found in chain");

}

// Check if proof is valid, only add results if so

if (pindex->nTx == merkleBlock.txn.GetNumTransactions()) {

for (const uint256& hash : vMatch) {

res.push_back(hash.GetHex());

}

}

return res;

},

};

{

return RPCHelpMan{"createrawtransaction",

"\nCreate a transaction spending the given inputs and creating new outputs.\n"

"Outputs can be addresses or data.\n"

"Returns hex-encoded raw transaction.\n"

"Note that the transaction's inputs are not signed, and\n"

"it is not stored in the wallet or transmitted to the network.\n",

CreateTxDoc(),

RPCResult{

RPCResult::Type::STR_HEX, "transaction", "hex string of the transaction"

},

RPCExamples{

HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"[{\\\"address\\\":0.01}]\"")

+ HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"[{\\\"data\\\":\\\"00010203\\\"}]\"")

+ HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"[{\\\"address\\\":0.01}]\"")

+ HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"[{\\\"data\\\":\\\"00010203\\\"}]\"")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

RPCTypeCheck(request.params, {

UniValue::VARR,

UniValueType(), // ARR or OBJ, checked later

UniValue::VNUM,

UniValue::VBOOL

}, true

);

bool rbf = false;

if (!request.params[3].isNull()) {

rbf = request.params[3].isTrue();

}

CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf);

return EncodeHexTx(CTransaction(rawTx));

},

};

{

return RPCHelpMan{"decoderawtransaction",

"\nReturn a JSON object representing the serialized, hex-encoded transaction.\n",

{

{"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction hex string"},

{"iswitness", RPCArg::Type::BOOL, RPCArg::DefaultHint{"depends on heuristic tests"}, "Whether the transaction hex is a serialized witness transaction.\n"

"If iswitness is not present, heuristic tests will be used in decoding.\n"

"If true, only witness deserialization will be tried.\n"

"If false, only non-witness deserialization will be tried.\n"

"This boolean should reflect whether the transaction has inputs\n"

"(e.g. fully valid, or on-chain transactions), if known by the caller."

},

},

RPCResult{

RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR_HEX, "txid", "The transaction id"},

{RPCResult::Type::STR_HEX, "hash", "The transaction hash (differs from txid for witness transactions)"},

{RPCResult::Type::NUM, "size", "The transaction size"},

{RPCResult::Type::NUM, "vsize", "The virtual transaction size (differs from size for witness transactions)"},

{RPCResult::Type::NUM, "weight", "The transaction's weight (between vsize*4 - 3 and vsize*4)"},

{RPCResult::Type::NUM, "version", "The version"},

{RPCResult::Type::NUM_TIME, "locktime", "The lock time"},

{RPCResult::Type::ARR, "vin", "",

{

{RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR_HEX, "coinbase", /*optional=*/true, ""},

{RPCResult::Type::STR_HEX, "txid", /*optional=*/true, "The transaction id"},

{RPCResult::Type::NUM, "vout", /*optional=*/true, "The output number"},

{RPCResult::Type::OBJ, "scriptSig", /*optional=*/true, "The script",

{

{RPCResult::Type::STR, "asm", "asm"},

{RPCResult::Type::STR_HEX, "hex", "hex"},

}},

{RPCResult::Type::ARR, "txinwitness", /*optional=*/true, "",

{

{RPCResult::Type::STR_HEX, "hex", "hex-encoded witness data (if any)"},

}},

{RPCResult::Type::NUM, "sequence", "The script sequence number"},

}},

}},

{RPCResult::Type::ARR, "vout", "",

{

{RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::NUM, "value", "The value in " + CURRENCY_UNIT},

{RPCResult::Type::NUM, "n", "index"},

{RPCResult::Type::OBJ, "scriptPubKey", "",

{

{RPCResult::Type::STR, "asm", "the asm"},

{RPCResult::Type::STR, "desc", "Inferred descriptor for the output"},

{RPCResult::Type::STR_HEX, "hex", "the hex"},

{RPCResult::Type::STR, "type", "The type, eg 'pubkeyhash'"},

{RPCResult::Type::STR, "address", /*optional=*/true, "The Bitcoin address (only if a well-defined address exists)"},

}},

}},

}},

}

},

RPCExamples{

HelpExampleCli("decoderawtransaction", "\"hexstring\"")

+ HelpExampleRpc("decoderawtransaction", "\"hexstring\"")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VBOOL});

CMutableTransaction mtx;

bool try_witness = request.params[1].isNull() ? true : request.params[1].get_bool();

bool try_no_witness = request.params[1].isNull() ? true : !request.params[1].get_bool();

if (!DecodeHexTx(mtx, request.params[0].get_str(), try_no_witness, try_witness)) {

throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");

}

UniValue result(UniValue::VOBJ);

TxToUniv(CTransaction(std::move(mtx)), uint256(), result, false);

return result;

},

};

{

return RPCHelpMan{

"decodescript",

"\nDecode a hex-encoded script.\n",

{

{"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "the hex-encoded script"},

},

RPCResult{

RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR, "asm", "Script public key"},

{RPCResult::Type::STR, "desc", "Inferred descriptor for the script"},

{RPCResult::Type::STR, "type", "The output type (e.g. " + GetAllOutputTypes() + ")"},

{RPCResult::Type::STR, "address", /*optional=*/true, "The Bitcoin address (only if a well-defined address exists)"},

{RPCResult::Type::STR, "p2sh", /*optional=*/true,

"address of P2SH script wrapping this redeem script (not returned for types that should not be wrapped)"},

{RPCResult::Type::OBJ, "segwit", /*optional=*/true,

"Result of a witness script public key wrapping this redeem script (not returned for types that should not be wrapped)",

{

{RPCResult::Type::STR, "asm", "String representation of the script public key"},

{RPCResult::Type::STR_HEX, "hex", "Hex string of the script public key"},

{RPCResult::Type::STR, "type", "The type of the script public key (e.g. witness_v0_keyhash or witness_v0_scripthash)"},

{RPCResult::Type::STR, "address", /*optional=*/true, "The Bitcoin address (only if a well-defined address exists)"},

{RPCResult::Type::STR, "desc", "Inferred descriptor for the script"},

{RPCResult::Type::STR, "p2sh-segwit", "address of the P2SH script wrapping this witness redeem script"},

}},

},

},

RPCExamples{

HelpExampleCli("decodescript", "\"hexstring\"")

+ HelpExampleRpc("decodescript", "\"hexstring\"")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

RPCTypeCheck(request.params, {UniValue::VSTR});

UniValue r(UniValue::VOBJ);

CScript script;

if (request.params[0].get_str().size() > 0){

std::vector<unsigned char> scriptData(ParseHexV(request.params[0], "argument"));

script = CScript(scriptData.begin(), scriptData.end());

} else {

// Empty scripts are valid

}

ScriptPubKeyToUniv(script, r, /* include_hex */ false);

std::vector<std::vector<unsigned char>> solutions_data;

const TxoutType which_type{Solver(script, solutions_data)};

const bool can_wrap{[&] {

switch (which_type) {

case TxoutType::MULTISIG:

case TxoutType::NONSTANDARD:

case TxoutType::PUBKEY:

case TxoutType::PUBKEYHASH:

case TxoutType::WITNESS_V0_KEYHASH:

case TxoutType::WITNESS_V0_SCRIPTHASH:

// Can be wrapped if the checks below pass

break;

case TxoutType::NULL_DATA:

case TxoutType::SCRIPTHASH:

case TxoutType::WITNESS_UNKNOWN:

case TxoutType::WITNESS_V1_TAPROOT:

// Should not be wrapped

return false;

} // no default case, so the compiler can warn about missing cases

if (!script.HasValidOps() || script.IsUnspendable()) {

return false;

}

for (CScript::const_iterator it{script.begin()}; it != script.end();) {

opcodetype op;

CHECK_NONFATAL(script.GetOp(it, op));

if (op == OP_CHECKSIGADD || IsOpSuccess(op)) {

return false;

}

}

return true;

}()};

if (can_wrap) {

r.pushKV("p2sh", EncodeDestination(ScriptHash(script)));

// P2SH and witness programs cannot be wrapped in P2WSH, if this script

// is a witness program, don't return addresses for a segwit programs.

const bool can_wrap_P2WSH{[&] {

switch (which_type) {

case TxoutType::MULTISIG:

case TxoutType::PUBKEY:

// Uncompressed pubkeys cannot be used with segwit checksigs.

// If the script contains an uncompressed pubkey, skip encoding of a segwit program.

for (const auto& solution : solutions_data) {

if ((solution.size() != 1) && !CPubKey(solution).IsCompressed()) {

return false;

}

}

return true;

case TxoutType::NONSTANDARD:

case TxoutType::PUBKEYHASH:

// Can be P2WSH wrapped

return true;

case TxoutType::NULL_DATA:

case TxoutType::SCRIPTHASH:

case TxoutType::WITNESS_UNKNOWN:

case TxoutType::WITNESS_V0_KEYHASH:

case TxoutType::WITNESS_V0_SCRIPTHASH:

case TxoutType::WITNESS_V1_TAPROOT:

// Should not be wrapped

return false;

} // no default case, so the compiler can warn about missing cases

CHECK_NONFATAL(false);

}()};

if (can_wrap_P2WSH) {

UniValue sr(UniValue::VOBJ);

CScript segwitScr;

if (which_type == TxoutType::PUBKEY) {

segwitScr = GetScriptForDestination(WitnessV0KeyHash(Hash160(solutions_data[0])));

} else if (which_type == TxoutType::PUBKEYHASH) {

segwitScr = GetScriptForDestination(WitnessV0KeyHash(uint160{solutions_data[0]}));

} else {

// Scripts that are not fit for P2WPKH are encoded as P2WSH.

segwitScr = GetScriptForDestination(WitnessV0ScriptHash(script));

}

ScriptPubKeyToUniv(segwitScr, sr, /* include_hex */ true);

sr.pushKV("p2sh-segwit", EncodeDestination(ScriptHash(segwitScr)));

r.pushKV("segwit", sr);

}

}

return r;

},

};

{

return RPCHelpMan{"combinerawtransaction",

"\nCombine multiple partially signed transactions into one transaction.\n"

"The combined transaction may be another partially signed transaction or a \n"

"fully signed transaction.",

{

{"txs", RPCArg::Type::ARR, RPCArg::Optional::NO, "The hex strings of partially signed transactions",

{

{"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "A hex-encoded raw transaction"},

},

},

},

RPCResult{

RPCResult::Type::STR, "", "The hex-encoded raw transaction with signature(s)"

},

RPCExamples{

HelpExampleCli("combinerawtransaction", R"('["myhex1", "myhex2", "myhex3"]')")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

UniValue txs = request.params[0].get_array();

std::vector<CMutableTransaction> txVariants(txs.size());

for (unsigned int idx = 0; idx < txs.size(); idx++) {

if (!DecodeHexTx(txVariants[idx], txs[idx].get_str())) {

throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed for tx %d. Make sure the tx has at least one input.", idx));

}

}

if (txVariants.empty()) {

throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Missing transactions");

}

// mergedTx will end up with all the signatures; it

// starts as a clone of the rawtx:

CMutableTransaction mergedTx(txVariants[0]);

// Fetch previous transactions (inputs):

CCoinsView viewDummy;

CCoinsViewCache view(&viewDummy);

{

NodeContext& node = EnsureAnyNodeContext(request.context);

const CTxMemPool& mempool = EnsureMemPool(node);

ChainstateManager& chainman = EnsureChainman(node);

LOCK2(cs_main, mempool.cs);

CCoinsViewCache &viewChain = chainman.ActiveChainstate().CoinsTip();

CCoinsViewMemPool viewMempool(&viewChain, mempool);

view.SetBackend(viewMempool); // temporarily switch cache backend to db+mempool view

for (const CTxIn& txin : mergedTx.vin) {

view.AccessCoin(txin.prevout); // Load entries from viewChain into view; can fail.

}

view.SetBackend(viewDummy); // switch back to avoid locking mempool for too long

}

// Use CTransaction for the constant parts of the

// transaction to avoid rehashing.

const CTransaction txConst(mergedTx);

// Sign what we can:

for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {

CTxIn& txin = mergedTx.vin[i];

const Coin& coin = view.AccessCoin(txin.prevout);

if (coin.IsSpent()) {

throw JSONRPCError(RPC_VERIFY_ERROR, "Input not found or already spent");

}

SignatureData sigdata;

// ... and merge in other signatures:

for (const CMutableTransaction& txv : txVariants) {

if (txv.vin.size() > i) {

sigdata.MergeSignatureData(DataFromTransaction(txv, i, coin.out));

}

}

ProduceSignature(DUMMY_SIGNING_PROVIDER, MutableTransactionSignatureCreator(&mergedTx, i, coin.out.nValue, 1), coin.out.scriptPubKey, sigdata);

UpdateInput(txin, sigdata);

}

return EncodeHexTx(CTransaction(mergedTx));

},

};

{

return RPCHelpMan{"signrawtransactionwithkey",

"\nSign inputs for raw transaction (serialized, hex-encoded).\n"

"The second argument is an array of base58-encoded private\n"

"keys that will be the only keys used to sign the transaction.\n"

"The third optional argument (may be null) is an array of previous transaction outputs that\n"

"this transaction depends on but may not yet be in the block chain.\n",

{

{"hexstring", RPCArg::Type::STR, RPCArg::Optional::NO, "The transaction hex string"},

{"privkeys", RPCArg::Type::ARR, RPCArg::Optional::NO, "The base58-encoded private keys for signing",

{

{"privatekey", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "private key in base58-encoding"},

},

},

{"prevtxs", RPCArg::Type::ARR, RPCArg::Optional::OMITTED_NAMED_ARG, "The previous dependent transaction outputs",

{

{"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",

{

{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},

{"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},

{"scriptPubKey", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "script key"},

{"redeemScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2SH) redeem script"},

{"witnessScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2WSH or P2SH-P2WSH) witness script"},

{"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::OMITTED, "(required for Segwit inputs) the amount spent"},

},

},

},

},

{"sighashtype", RPCArg::Type::STR, RPCArg::Default{"DEFAULT for Taproot, ALL otherwise"}, "The signature hash type. Must be one of:\n"

" \"DEFAULT\"\n"

" \"ALL\"\n"

" \"NONE\"\n"

" \"SINGLE\"\n"

" \"ALL|ANYONECANPAY\"\n"

" \"NONE|ANYONECANPAY\"\n"

" \"SINGLE|ANYONECANPAY\"\n"

},

},

RPCResult{

RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR_HEX, "hex", "The hex-encoded raw transaction with signature(s)"},

{RPCResult::Type::BOOL, "complete", "If the transaction has a complete set of signatures"},

{RPCResult::Type::ARR, "errors", /*optional=*/true, "Script verification errors (if there are any)",

{

{RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR_HEX, "txid", "The hash of the referenced, previous transaction"},

{RPCResult::Type::NUM, "vout", "The index of the output to spent and used as input"},

{RPCResult::Type::ARR, "witness", "",

{

{RPCResult::Type::STR_HEX, "witness", ""},

}},

{RPCResult::Type::STR_HEX, "scriptSig", "The hex-encoded signature script"},

{RPCResult::Type::NUM, "sequence", "Script sequence number"},

{RPCResult::Type::STR, "error", "Verification or signing error related to the input"},

}},

}},

}

},

RPCExamples{

HelpExampleCli("signrawtransactionwithkey", "\"myhex\" \"[\\\"key1\\\",\\\"key2\\\"]\"")

+ HelpExampleRpc("signrawtransactionwithkey", "\"myhex\", \"[\\\"key1\\\",\\\"key2\\\"]\"")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VARR, UniValue::VARR, UniValue::VSTR}, true);

CMutableTransaction mtx;

if (!DecodeHexTx(mtx, request.params[0].get_str())) {

throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");

}

FillableSigningProvider keystore;

const UniValue& keys = request.params[1].get_array();

for (unsigned int idx = 0; idx < keys.size(); ++idx) {

UniValue k = keys[idx];

CKey key = DecodeSecret(k.get_str());

if (!key.IsValid()) {

throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid private key");

}

keystore.AddKey(key);

}

// Fetch previous transactions (inputs):

std::map<COutPoint, Coin> coins;

for (const CTxIn& txin : mtx.vin) {

coins[txin.prevout]; // Create empty map entry keyed by prevout.

}

NodeContext& node = EnsureAnyNodeContext(request.context);

FindCoins(node, coins);

// Parse the prevtxs array

ParsePrevouts(request.params[2], &keystore, coins);

UniValue result(UniValue::VOBJ);

SignTransaction(mtx, &keystore, coins, request.params[3], result);

return result;

},

};

{

return RPCHelpMan{"sendrawtransaction",

"\nSubmit a raw transaction (serialized, hex-encoded) to local node and network.\n"

"\nThe transaction will be sent unconditionally to all peers, so using sendrawtransaction\n"

"for manual rebroadcast may degrade privacy by leaking the transaction's origin, as\n"

"nodes will normally not rebroadcast non-wallet transactions already in their mempool.\n"

"\nA specific exception, RPC_TRANSACTION_ALREADY_IN_CHAIN, may throw if the transaction cannot be added to the mempool.\n"

"\nRelated RPCs: createrawtransaction, signrawtransactionwithkey\n",

{

{"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex string of the raw transaction"},

{"maxfeerate", RPCArg::Type::AMOUNT, RPCArg::Default{FormatMoney(DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK())},

"Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT +

"/kvB.\nSet to 0 to accept any fee rate.\n"},

},

RPCResult{

RPCResult::Type::STR_HEX, "", "The transaction hash in hex"

},

RPCExamples{

"\nCreate a transaction\n"

+ HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\" : \\\"mytxid\\\",\\\"vout\\\":0}]\" \"{\\\"myaddress\\\":0.01}\"") +

"Sign the transaction, and get back the hex\n"

+ HelpExampleCli("signrawtransactionwithwallet", "\"myhex\"") +

"\nSend the transaction (signed hex)\n"

+ HelpExampleCli("sendrawtransaction", "\"signedhex\"") +

"\nAs a JSON-RPC call\n"

+ HelpExampleRpc("sendrawtransaction", "\"signedhex\"")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

RPCTypeCheck(request.params, {

UniValue::VSTR,

UniValueType(), // VNUM or VSTR, checked inside AmountFromValue()

});

CMutableTransaction mtx;

if (!DecodeHexTx(mtx, request.params[0].get_str())) {

throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");

}

CTransactionRef tx(MakeTransactionRef(std::move(mtx)));

const CFeeRate max_raw_tx_fee_rate = request.params[1].isNull() ?

DEFAULT_MAX_RAW_TX_FEE_RATE :

CFeeRate(AmountFromValue(request.params[1]));

int64_t virtual_size = GetVirtualTransactionSize(*tx);

CAmount max_raw_tx_fee = max_raw_tx_fee_rate.GetFee(virtual_size);

std::string err_string;

AssertLockNotHeld(cs_main);

NodeContext& node = EnsureAnyNodeContext(request.context);

const TransactionError err = BroadcastTransaction(node, tx, err_string, max_raw_tx_fee, /*relay*/ true, /*wait_callback*/ true);

if (TransactionError::OK != err) {

throw JSONRPCTransactionError(err, err_string);

}

return tx->GetHash().GetHex();

},

};

{

return RPCHelpMan{"testmempoolaccept",

"\nReturns result of mempool acceptance tests indicating if raw transaction(s) (serialized, hex-encoded) would be accepted by mempool.\n"

"\nIf multiple transactions are passed in, parents must come before children and package policies apply: the transactions cannot conflict with any mempool transactions or each other.\n"

"\nIf one transaction fails, other transactions may not be fully validated (the 'allowed' key will be blank).\n"

"\nThe maximum number of transactions allowed is " + ToString(MAX_PACKAGE_COUNT) + ".\n"

"\nThis checks if transactions violate the consensus or policy rules.\n"

"\nSee sendrawtransaction call.\n",

{

{"rawtxs", RPCArg::Type::ARR, RPCArg::Optional::NO, "An array of hex strings of raw transactions.",

{

{"rawtx", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, ""},

},

},

{"maxfeerate", RPCArg::Type::AMOUNT, RPCArg::Default{FormatMoney(DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK())},

"Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT + "/kvB\n"},

},

RPCResult{

RPCResult::Type::ARR, "", "The result of the mempool acceptance test for each raw transaction in the input array.\n"

"Returns results for each transaction in the same order they were passed in.\n"

"Transactions that cannot be fully validated due to failures in other transactions will not contain an 'allowed' result.\n",

{

{RPCResult::Type::OBJ, "", "",

{

{RPCResult::Type::STR_HEX, "txid", "The transaction hash in hex"},

{RPCResult::Type::STR_HEX, "wtxid", "The transaction witness hash in hex"},

{RPCResult::Type::STR, "package-error", /*optional=*/true, "Package validation error, if any (only possible if rawtxs had more than 1 transaction)."},

{RPCResult::Type::BOOL, "allowed", /*optional=*/true, "Whether this tx would be accepted to the mempool and pass client-specified maxfeerate. "

"If not present, the tx was not fully validated due to a failure in another tx in the list."},

{RPCResult::Type::NUM, "vsize", /*optional=*/true, "Virtual transaction size as defined in BIP 141. This is different from actual serialized size for witness transactions as witness data is discounted (only present when 'allowed' is true)"},

{RPCResult::Type::OBJ, "fees", /*optional=*/true, "Transaction fees (only present if 'allowed' is true)",

{

{RPCResult::Type::STR_AMOUNT, "base", "transaction fee in " + CURRENCY_UNIT},

}},

{RPCResult::Type::STR, "reject-reason", /*optional=*/true, "Rejection string (only present when 'allowed' is false)"},

}},

}

},

RPCExamples{

"\nCreate a transaction\n"

+ HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\" : \\\"mytxid\\\",\\\"vout\\\":0}]\" \"{\\\"myaddress\\\":0.01}\"") +

"Sign the transaction, and get back the hex\n"

+ HelpExampleCli("signrawtransactionwithwallet", "\"myhex\"") +

"\nTest acceptance of the transaction (signed hex)\n"

+ HelpExampleCli("testmempoolaccept", R"('["signedhex"]')") +

"\nAs a JSON-RPC call\n"

+ HelpExampleRpc("testmempoolaccept", "[\"signedhex\"]")

},

[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue

{

RPCTypeCheck(request.params, {

UniValue::VARR,

UniValueType(), // VNUM or VSTR, checked inside AmountFromValue()

});

const UniValue raw_transactions = request.params[0].get_array();

if (raw_transactions.size() < 1 || raw_transactions.size() > MAX_PACKAGE_COUNT) {

throw JSONRPCError(RPC_INVALID_PARAMETER,

"Array must contain between 1 and " + ToString(MAX_PACKAGE_COUNT) + " transactions.");

}

const CFeeRate max_raw_tx_fee_rate = request.params[1].isNull() ?

DEFAULT_MAX_RAW_TX_FEE_RATE :

CFeeRate(AmountFromValue(request.params[1]));

std::vector<CTransactionRef> txns;

txns.reserve(raw_transactions.size());

for (const auto& rawtx : raw_transactions.getValues()) {

CMutableTransaction mtx;

if (!DecodeHexTx(mtx, rawtx.get_str())) {

throw JSONRPCError(RPC_DESERIALIZATION_ERROR,

"TX decode failed: " + rawtx.get_str() + " Make sure the tx has at least one input.");

}