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src/rpc/rawtransaction.cpp

// Copyright (c) 2010 Satoshi Nakamoto // Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2016 The Bitcoin Core developers // Copyright (c) 2009-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying // Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php. // file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <chain.h> #include <chain.h>
#include <coins.h> #include <coins.h>
#include <compat/byteswap.h>
#include <config.h> #include <config.h>
#include <consensus/validation.h> #include <consensus/validation.h>
#include <core_io.h> #include <core_io.h>
#include <index/txindex.h> #include <index/txindex.h>
#include <init.h> #include <init.h>
#include <key_io.h> #include <key_io.h>
#include <keystore.h> #include <keystore.h>
#include <merkleblock.h> #include <merkleblock.h>
▲ Show 20 Lines • Show All 1,320 Lines • ▼ Show 20 Lines if (!test_accept_res) {
result_0.pushKV("reject-reason", state.GetRejectReason()); result_0.pushKV("reject-reason", state.GetRejectReason());
} }
} }
result.push_back(std::move(result_0)); result.push_back(std::move(result_0));
return result; return result;
} }
static std::string WriteHDKeypath(std::vector<uint32_t> &keypath) {
std::string keypath_str = "m";
for (uint32_t num : keypath) {
keypath_str += "/";
bool hardened = false;
if (num & 0x80000000) {
hardened = true;
num &= ~0x80000000;
}
keypath_str += std::to_string(num);
if (hardened) {
keypath_str += "'";
}
}
return keypath_str;
}
static UniValue decodepsbt(const Config &config,
const JSONRPCRequest &request) {
if (request.fHelp || request.params.size() != 1) {
throw std::runtime_error(
"decodepsbt \"psbt\"\n"
"\nReturn a JSON object representing the serialized, "
"base64-encoded partially signed Bitcoin transaction.\n"
"\nArguments:\n"
"1. \"psbt\" (string, required) The PSBT base64 string\n"
"\nResult:\n"
"{\n"
" \"tx\" : { (json object) The decoded "
"network-serialized unsigned transaction.\n"
" ... The layout is the "
"same as the output of decoderawtransaction.\n"
" },\n"
" \"unknown\" : { (json object) The unknown global "
"fields\n"
" \"key\" : \"value\" (key-value pair) An unknown "
"key-value pair\n"
" ...\n"
" },\n"
" \"inputs\" : [ (array of json objects)\n"
" {\n"
" \"utxo\" : { (json object, optional) Transaction "
"output for UTXOs\n"
" \"amount\" : x.xxx, (numeric) The value in " +
CURRENCY_UNIT +
"\n"
" \"scriptPubKey\" : { (json object)\n"
" \"asm\" : \"asm\", (string) The asm\n"
" \"hex\" : \"hex\", (string) The hex\n"
" \"type\" : \"pubkeyhash\", (string) The type, eg "
"'pubkeyhash'\n"
" \"address\" : \"address\" (string) Bitcoin address "
"if there is one\n"
" }\n"
" },\n"
" \"partial_signatures\" : { (json object, "
"optional)\n"
" \"pubkey\" : \"signature\", (string) The public "
"key and signature that corresponds to it.\n"
" ,...\n"
" }\n"
" \"sighash\" : \"type\", (string, optional) "
"The sighash type to be used\n"
" \"redeem_script\" : { (json object, optional)\n"
" \"asm\" : \"asm\", (string) The asm\n"
" \"hex\" : \"hex\", (string) The hex\n"
" \"type\" : \"pubkeyhash\", (string) The type, eg "
"'pubkeyhash'\n"
" }\n"
" \"bip32_derivs\" : { (json object, optional)\n"
" \"pubkey\" : { (json object, "
"optional) The public key with the derivation path as the value.\n"
" \"master_fingerprint\" : \"fingerprint\" (string) "
"The fingerprint of the master key\n"
" \"path\" : \"path\", (string) "
"The path\n"
" }\n"
" ,...\n"
" }\n"
" \"final_scriptsig\" : { (json object, optional)\n"
" \"asm\" : \"asm\", (string) The asm\n"
" \"hex\" : \"hex\", (string) The hex\n"
" }\n"
" \"unknown\" : { (json object) The unknown "
"global fields\n"
" \"key\" : \"value\" (key-value pair) An "
"unknown key-value pair\n"
" ...\n"
" },\n"
" }\n"
" ,...\n"
" ]\n"
" \"outputs\" : [ (array of json objects)\n"
" {\n"
" \"redeem_script\" : { (json object, optional)\n"
" \"asm\" : \"asm\", (string) The asm\n"
" \"hex\" : \"hex\", (string) The hex\n"
" \"type\" : \"pubkeyhash\", (string) The type, eg "
"'pubkeyhash'\n"
" }\n"
" \"bip32_derivs\" : [ (array of json objects, "
"optional)\n"
" {\n"
" \"pubkey\" : \"pubkey\", (string) "
"The public key this path corresponds to\n"
" \"master_fingerprint\" : \"fingerprint\" (string) "
"The fingerprint of the master key\n"
" \"path\" : \"path\", (string) "
"The path\n"
" }\n"
" }\n"
" ,...\n"
" ],\n"
" \"unknown\" : { (json object) The unknown "
"global fields\n"
" \"key\" : \"value\" (key-value pair) An "
"unknown key-value pair\n"
" ...\n"
" },\n"
" }\n"
" ,...\n"
" ]\n"
" \"fee\" : fee (numeric, optional) The "
"transaction fee paid if all UTXOs slots in the PSBT have been "
"filled.\n"
"}\n"
"\nExamples:\n" +
HelpExampleCli("decodepsbt", "\"psbt\""));
}
RPCTypeCheck(request.params, {UniValue::VSTR});
// Unserialize the transactions
PartiallySignedTransaction psbtx;
std::string error;
if (!DecodePSBT(psbtx, request.params[0].get_str(), error)) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR,
strprintf("TX decode failed %s", error));
}
UniValue result(UniValue::VOBJ);
// Add the decoded tx
UniValue tx_univ(UniValue::VOBJ);
TxToUniv(CTransaction(*psbtx.tx), uint256(), tx_univ, false);
result.pushKV("tx", tx_univ);
// Unknown data
if (psbtx.unknown.size() > 0) {
UniValue unknowns(UniValue::VOBJ);
for (auto entry : psbtx.unknown) {
unknowns.pushKV(HexStr(entry.first), HexStr(entry.second));
}
result.pushKV("unknown", unknowns);
}
// inputs
Amount total_in = Amount::zero();
bool have_all_utxos = true;
UniValue inputs(UniValue::VARR);
for (size_t i = 0; i < psbtx.inputs.size(); ++i) {
const PSBTInput &input = psbtx.inputs[i];
UniValue in(UniValue::VOBJ);
// UTXOs
if (!input.utxo.IsNull()) {
const CTxOut &txout = input.utxo;
UniValue out(UniValue::VOBJ);
out.pushKV("amount", ValueFromAmount(txout.nValue));
total_in += txout.nValue;
UniValue o(UniValue::VOBJ);
ScriptToUniv(txout.scriptPubKey, o, true);
out.pushKV("scriptPubKey", o);
in.pushKV("utxo", out);
} else {
have_all_utxos = false;
}
// Partial sigs
if (!input.partial_sigs.empty()) {
UniValue partial_sigs(UniValue::VOBJ);
for (const auto &sig : input.partial_sigs) {
partial_sigs.pushKV(HexStr(sig.second.first),
HexStr(sig.second.second));
}
in.pushKV("partial_signatures", partial_sigs);
}
// Sighash
uint8_t sighashbyte = input.sighash_type.getRawSigHashType() & 0xff;
if (sighashbyte > 0) {
in.pushKV("sighash", SighashToStr(sighashbyte));
}
// Redeem script
if (!input.redeem_script.empty()) {
UniValue r(UniValue::VOBJ);
ScriptToUniv(input.redeem_script, r, false);
in.pushKV("redeem_script", r);
}
// keypaths
if (!input.hd_keypaths.empty()) {
UniValue keypaths(UniValue::VARR);
for (auto entry : input.hd_keypaths) {
UniValue keypath(UniValue::VOBJ);
keypath.pushKV("pubkey", HexStr(entry.first));
uint32_t fingerprint = entry.second.at(0);
keypath.pushKV("master_fingerprint",
strprintf("%08x", bswap_32(fingerprint)));
entry.second.erase(entry.second.begin());
keypath.pushKV("path", WriteHDKeypath(entry.second));
keypaths.push_back(keypath);
}
in.pushKV("bip32_derivs", keypaths);
}
// Final scriptSig
if (!input.final_script_sig.empty()) {
UniValue scriptsig(UniValue::VOBJ);
scriptsig.pushKV("asm",
ScriptToAsmStr(input.final_script_sig, true));
scriptsig.pushKV("hex", HexStr(input.final_script_sig));
in.pushKV("final_scriptSig", scriptsig);
}
// Unknown data
if (input.unknown.size() > 0) {
UniValue unknowns(UniValue::VOBJ);
for (auto entry : input.unknown) {
unknowns.pushKV(HexStr(entry.first), HexStr(entry.second));
}
in.pushKV("unknown", unknowns);
}
inputs.push_back(in);
}
result.pushKV("inputs", inputs);
// outputs
Amount output_value = Amount::zero();
UniValue outputs(UniValue::VARR);
for (size_t i = 0; i < psbtx.outputs.size(); ++i) {
const PSBTOutput &output = psbtx.outputs[i];
UniValue out(UniValue::VOBJ);
// Redeem script
if (!output.redeem_script.empty()) {
UniValue r(UniValue::VOBJ);
ScriptToUniv(output.redeem_script, r, false);
out.pushKV("redeem_script", r);
}
// keypaths
if (!output.hd_keypaths.empty()) {
UniValue keypaths(UniValue::VARR);
for (auto entry : output.hd_keypaths) {
UniValue keypath(UniValue::VOBJ);
keypath.pushKV("pubkey", HexStr(entry.first));
uint32_t fingerprint = entry.second.at(0);
keypath.pushKV("master_fingerprint",
strprintf("%08x", bswap_32(fingerprint)));
entry.second.erase(entry.second.begin());
keypath.pushKV("path", WriteHDKeypath(entry.second));
keypaths.push_back(keypath);
}
out.pushKV("bip32_derivs", keypaths);
}
// Unknown data
if (output.unknown.size() > 0) {
UniValue unknowns(UniValue::VOBJ);
for (auto entry : output.unknown) {
unknowns.pushKV(HexStr(entry.first), HexStr(entry.second));
}
out.pushKV("unknown", unknowns);
}
outputs.push_back(out);
// Fee calculation
output_value += psbtx.tx->vout[i].nValue;
}
result.pushKV("outputs", outputs);
if (have_all_utxos) {
result.pushKV("fee", ValueFromAmount(total_in - output_value));
}
return result;
}
static UniValue combinepsbt(const Config &config,
const JSONRPCRequest &request) {
if (request.fHelp || request.params.size() != 1) {
throw std::runtime_error(
"combinepsbt [\"psbt\",...]\n"
"\nCombine multiple partially signed Bitcoin transactions into one "
"transaction.\n"
"Implements the Combiner role.\n"
"\nArguments:\n"
"1. \"txs\" (string) A json array of base64 "
"strings of partially signed transactions\n"
" [\n"
" \"psbt\" (string) A base64 string of a PSBT\n"
" ,...\n"
" ]\n"
"\nResult:\n"
" \"psbt\" (string) The base64-encoded partially signed "
"transaction\n"
"\nExamples:\n" +
HelpExampleCli("combinepsbt",
"[\"mybase64_1\", \"mybase64_2\", \"mybase64_3\"]"));
}
RPCTypeCheck(request.params, {UniValue::VARR}, true);
// Unserialize the transactions
std::vector<PartiallySignedTransaction> psbtxs;
UniValue txs = request.params[0].get_array();
for (size_t i = 0; i < txs.size(); ++i) {
PartiallySignedTransaction psbtx;
std::string error;
if (!DecodePSBT(psbtx, txs[i].get_str(), error)) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR,
strprintf("TX decode failed %s", error));
}
psbtxs.push_back(psbtx);
}
// Copy the first one
PartiallySignedTransaction merged_psbt(psbtxs[0]);
// Merge
for (auto it = std::next(psbtxs.begin()); it != psbtxs.end(); ++it) {
if (*it != merged_psbt) {
throw JSONRPCError(RPC_INVALID_PARAMETER,
"PSBTs do not refer to the same transactions.");
}
merged_psbt.Merge(*it);
}
if (!merged_psbt.IsSane()) {
throw JSONRPCError(RPC_INVALID_PARAMETER,
"Merged PSBT is inconsistent");
}
UniValue result(UniValue::VOBJ);
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << merged_psbt;
return EncodeBase64((uint8_t *)ssTx.data(), ssTx.size());
}
static UniValue finalizepsbt(const Config &config,
const JSONRPCRequest &request) {
if (request.fHelp || request.params.size() < 1 ||
request.params.size() > 2) {
throw std::runtime_error(
"finalizepsbt \"psbt\" ( extract )\n"
"Finalize the inputs of a PSBT. If the transaction is fully "
"signed, it will produce a\n"
"network serialized transaction which can be broadcast with "
"sendrawtransaction. Otherwise a PSBT will be\n"
"created which has the final_scriptSigfields filled for inputs "
"that are complete.\n"
"Implements the Finalizer and Extractor roles.\n"
"\nArguments:\n"
"1. \"psbt\" (string) A base64 string of a PSBT\n"
"2. \"extract\" (boolean, optional, default=true) If "
"true and the transaction is complete, \n"
" extract and return the complete "
"transaction in normal network serialization instead of the PSBT.\n"
"\nResult:\n"
"{\n"
" \"psbt\" : \"value\", (string) The base64-encoded "
"partially signed transaction if not extracted\n"
" \"hex\" : \"value\", (string) The hex-encoded network "
"transaction if extracted\n"
" \"complete\" : true|false, (boolean) If the transaction has a "
"complete set of signatures\n"
" ]\n"
"}\n"
"\nExamples:\n" +
HelpExampleCli("finalizepsbt", "\"psbt\""));
}
RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VBOOL}, true);
// Unserialize the transactions
PartiallySignedTransaction psbtx;
std::string error;
if (!DecodePSBT(psbtx, request.params[0].get_str(), error)) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR,
strprintf("TX decode failed %s", error));
}
// Get all of the previous transactions
bool complete = true;
for (size_t i = 0; i < psbtx.tx->vin.size(); ++i) {
PSBTInput &input = psbtx.inputs.at(i);
SignatureData sigdata;
complete &= SignPSBTInput(DUMMY_SIGNING_PROVIDER, *psbtx.tx, input,
sigdata, i, SigHashType());
}
UniValue result(UniValue::VOBJ);
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
bool extract = request.params[1].isNull() || (!request.params[1].isNull() &&
request.params[1].get_bool());
if (complete && extract) {
CMutableTransaction mtx(*psbtx.tx);
for (size_t i = 0; i < mtx.vin.size(); ++i) {
mtx.vin[i].scriptSig = psbtx.inputs[i].final_script_sig;
}
ssTx << mtx;
result.pushKV("hex", HexStr(ssTx.begin(), ssTx.end()));
} else {
ssTx << psbtx;
result.pushKV("psbt",
EncodeBase64((uint8_t *)ssTx.data(), ssTx.size()));
}
result.pushKV("complete", complete);
return result;
}
static UniValue createpsbt(const Config &config,
const JSONRPCRequest &request) {
if (request.fHelp || request.params.size() < 2 ||
request.params.size() > 3) {
throw std::runtime_error(
"createpsbt [{\"txid\":\"id\",\"vout\":n},...] "
"[{\"address\":amount},{\"data\":\"hex\"},...] ( locktime )\n"
"\nCreates a transaction in the Partially Signed Transaction "
"format.\n"
"Implements the Creator role.\n"
"\nArguments:\n"
"1. \"inputs\" (array, required) A json array of "
"json objects\n"
" [\n"
" {\n"
" \"txid\":\"id\", (string, required) The transaction "
"id\n"
" \"vout\":n, (numeric, required) The output "
"number\n"
" \"sequence\":n (numeric, optional) The sequence "
"number\n"
" } \n"
" ,...\n"
" ]\n"
"2. \"outputs\" (array, required) a json array with "
"outputs (key-value pairs)\n"
" [\n"
" {\n"
" \"address\": x.xxx, (obj, optional) A key-value pair. "
"The key (string) is the bitcoin address, the value (float or "
"string) is the amount in " +
CURRENCY_UNIT +
"\n"
" },\n"
" {\n"
" \"data\": \"hex\" (obj, optional) A key-value pair. "
"The key must be \"data\", the value is hex encoded data\n"
" }\n"
" ,... More key-value pairs of the above "
"form. For compatibility reasons, a dictionary, which holds the "
"key-value pairs directly, is also\n"
" accepted as second parameter.\n"
" ]\n"
"3. locktime (numeric, optional, default=0) Raw "
"locktime. Non-0 value also locktime-activates inputs\n"
"\nResult:\n"
" \"psbt\" (string) The resulting raw transaction "
"(base64-encoded string)\n"
"\nExamples:\n" +
HelpExampleCli("createpsbt",
"\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" "
"\"[{\\\"data\\\":\\\"00010203\\\"}]\""));
}
RPCTypeCheck(request.params,
{
UniValue::VARR,
UniValueType(), // ARR or OBJ, checked later
UniValue::VNUM,
},
true);
CMutableTransaction rawTx =
ConstructTransaction(config.GetChainParams(), request.params[0],
request.params[1], request.params[2]);
// Make a blank psbt
PartiallySignedTransaction psbtx;
psbtx.tx = rawTx;
for (size_t i = 0; i < rawTx.vin.size(); ++i) {
psbtx.inputs.push_back(PSBTInput());
}
for (size_t i = 0; i < rawTx.vout.size(); ++i) {
psbtx.outputs.push_back(PSBTOutput());
}
// Serialize the PSBT
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << psbtx;
return EncodeBase64((uint8_t *)ssTx.data(), ssTx.size());
}
static UniValue converttopsbt(const Config &config,
const JSONRPCRequest &request) {
if (request.fHelp || request.params.size() < 1 ||
request.params.size() > 2) {
throw std::runtime_error(
"converttopsbt \"hexstring\" ( permitsigdata )\n"
"\nConverts a network serialized transaction to a PSBT. This "
"should be used only with createrawtransaction and "
"fundrawtransaction\n"
"createpsbt and walletcreatefundedpsbt should be used for new "
"applications.\n"
"\nArguments:\n"
"1. \"hexstring\" (string, required) The hex string "
"of a raw transaction\n"
"2. permitsigdata (boolean, optional, default=false) If "
"true, any signatures in the input will be discarded and "
"conversion.\n"
" will continue. If false, RPC will "
"fail if any signatures are present.\n"
"\nResult:\n"
" \"psbt\" (string) The resulting raw transaction "
"(base64-encoded string)\n"
"\nExamples:\n"
"\nCreate a transaction\n" +
HelpExampleCli("createrawtransaction",
"\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" "
"\"[{\\\"data\\\":\\\"00010203\\\"}]\"") +
"\nConvert the transaction to a PSBT\n" +
HelpExampleCli("converttopsbt", "\"rawtransaction\""));
}
RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VBOOL}, true);
// parse hex string from parameter
CMutableTransaction tx;
if (!DecodeHexTx(tx, request.params[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
}
// Remove all scriptSigs from inputs
for (CTxIn &input : tx.vin) {
if (!input.scriptSig.empty() &&
(request.params[1].isNull() ||
(!request.params[1].isNull() && request.params[1].get_bool()))) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR,
"Inputs must not have scriptSigs");
}
input.scriptSig.clear();
}
// Make a blank psbt
PartiallySignedTransaction psbtx;
psbtx.tx = tx;
for (size_t i = 0; i < tx.vin.size(); ++i) {
psbtx.inputs.push_back(PSBTInput());
}
for (size_t i = 0; i < tx.vout.size(); ++i) {
psbtx.outputs.push_back(PSBTOutput());
}
// Serialize the PSBT
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << psbtx;
return EncodeBase64((uint8_t *)ssTx.data(), ssTx.size());
}
// clang-format off // clang-format off
static const ContextFreeRPCCommand commands[] = { static const ContextFreeRPCCommand commands[] = {
// category name actor (function) argNames // category name actor (function) argNames
// ------------------- ------------------------ ---------------------- ---------- // ------------------- ------------------------ ---------------------- ----------
{ "rawtransactions", "getrawtransaction", getrawtransaction, {"txid","verbose","blockhash"} }, { "rawtransactions", "getrawtransaction", getrawtransaction, {"txid","verbose","blockhash"} },
{ "rawtransactions", "createrawtransaction", createrawtransaction, {"inputs","outputs","locktime"} }, { "rawtransactions", "createrawtransaction", createrawtransaction, {"inputs","outputs","locktime"} },
{ "rawtransactions", "decoderawtransaction", decoderawtransaction, {"hexstring"} }, { "rawtransactions", "decoderawtransaction", decoderawtransaction, {"hexstring"} },
{ "rawtransactions", "decodescript", decodescript, {"hexstring"} }, { "rawtransactions", "decodescript", decodescript, {"hexstring"} },
{ "rawtransactions", "sendrawtransaction", sendrawtransaction, {"hexstring","allowhighfees"} }, { "rawtransactions", "sendrawtransaction", sendrawtransaction, {"hexstring","allowhighfees"} },
{ "rawtransactions", "combinerawtransaction", combinerawtransaction, {"txs"} }, { "rawtransactions", "combinerawtransaction", combinerawtransaction, {"txs"} },
{ "rawtransactions", "signrawtransactionwithkey", signrawtransactionwithkey, {"hexstring","privkeys","prevtxs","sighashtype"} }, { "rawtransactions", "signrawtransactionwithkey", signrawtransactionwithkey, {"hexstring","privkeys","prevtxs","sighashtype"} },
{ "rawtransactions", "testmempoolaccept", testmempoolaccept, {"rawtxs","allowhighfees"} }, { "rawtransactions", "testmempoolaccept", testmempoolaccept, {"rawtxs","allowhighfees"} },
{ "rawtransactions", "decodepsbt", decodepsbt, {"psbt"} },
{ "rawtransactions", "combinepsbt", combinepsbt, {"txs"} },
{ "rawtransactions", "finalizepsbt", finalizepsbt, {"psbt", "extract"} },
{ "rawtransactions", "createpsbt", createpsbt, {"inputs","outputs","locktime"} },
{ "rawtransactions", "converttopsbt", converttopsbt, {"hexstring","permitsigdata"} },
{ "blockchain", "gettxoutproof", gettxoutproof, {"txids", "blockhash"} }, { "blockchain", "gettxoutproof", gettxoutproof, {"txids", "blockhash"} },
{ "blockchain", "verifytxoutproof", verifytxoutproof, {"proof"} }, { "blockchain", "verifytxoutproof", verifytxoutproof, {"proof"} },
}; };
// clang-format on // clang-format on
void RegisterRawTransactionRPCCommands(CRPCTable &t) { void RegisterRawTransactionRPCCommands(CRPCTable &t) {
for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++) { for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++) {
t.appendCommand(commands[vcidx].name, &commands[vcidx]); t.appendCommand(commands[vcidx].name, &commands[vcidx]);
} }
} }