diff options
Diffstat (limited to 'src/rpc/rawtransaction.cpp')
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 727 |
1 files changed, 640 insertions, 87 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 63548bff05..608a1b5da2 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -1,10 +1,11 @@ // Copyright (c) 2010 Satoshi Nakamoto -// Copyright (c) 2009-2017 The Bitcoin Core developers +// Copyright (c) 2009-2018 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include <chain.h> #include <coins.h> +#include <compat/byteswap.h> #include <consensus/validation.h> #include <core_io.h> #include <index/txindex.h> @@ -306,7 +307,7 @@ static UniValue verifytxoutproof(const JSONRPCRequest& request) "\nArguments:\n" "1. \"proof\" (string, required) The hex-encoded proof generated by gettxoutproof\n" "\nResult:\n" - "[\"txid\"] (array, strings) The txid(s) which the proof commits to, or empty array if the proof is invalid\n" + "[\"txid\"] (array, strings) The txid(s) which the proof commits to, or empty array if the proof can not be validated.\n" ); CDataStream ssMB(ParseHexV(request.params[0], "proof"), SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS); @@ -323,89 +324,39 @@ static UniValue verifytxoutproof(const JSONRPCRequest& request) LOCK(cs_main); const CBlockIndex* pindex = LookupBlockIndex(merkleBlock.header.GetHash()); - if (!pindex || !chainActive.Contains(pindex)) { + if (!pindex || !chainActive.Contains(pindex) || pindex->nTx == 0) { throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found in chain"); } - for (const uint256& hash : vMatch) - res.push_back(hash.GetHex()); + // 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; } -static UniValue createrawtransaction(const JSONRPCRequest& request) +CMutableTransaction ConstructTransaction(const UniValue& inputs_in, const UniValue& outputs_in, const UniValue& locktime, const UniValue& rbf) { - if (request.fHelp || request.params.size() < 2 || request.params.size() > 4) { - throw std::runtime_error( - // clang-format off - "createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] [{\"address\":amount},{\"data\":\"hex\"},...] ( locktime ) ( replaceable )\n" - "\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" - - "\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" - "4. replaceable (boolean, optional, 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.\n" - "\nResult:\n" - "\"transaction\" (string) hex string of the transaction\n" - - "\nExamples:\n" - + 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\\\"}]\"") - // clang-format on - ); - } - - RPCTypeCheck(request.params, { - UniValue::VARR, - UniValueType(), // ARR or OBJ, checked later - UniValue::VNUM, - UniValue::VBOOL - }, true - ); - if (request.params[0].isNull() || request.params[1].isNull()) + if (inputs_in.isNull() || outputs_in.isNull()) throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, arguments 1 and 2 must be non-null"); - UniValue inputs = request.params[0].get_array(); - const bool outputs_is_obj = request.params[1].isObject(); - UniValue outputs = outputs_is_obj ? - request.params[1].get_obj() : - request.params[1].get_array(); + UniValue inputs = inputs_in.get_array(); + const bool outputs_is_obj = outputs_in.isObject(); + UniValue outputs = outputs_is_obj ? outputs_in.get_obj() : outputs_in.get_array(); CMutableTransaction rawTx; - if (!request.params[2].isNull()) { - int64_t nLockTime = request.params[2].get_int64(); + if (!locktime.isNull()) { + int64_t nLockTime = locktime.get_int64(); if (nLockTime < 0 || nLockTime > std::numeric_limits<uint32_t>::max()) throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, locktime out of range"); rawTx.nLockTime = nLockTime; } - bool rbfOptIn = request.params[3].isTrue(); + bool rbfOptIn = rbf.isTrue(); for (unsigned int idx = 0; idx < inputs.size(); idx++) { const UniValue& input = inputs[idx]; @@ -485,10 +436,71 @@ static UniValue createrawtransaction(const JSONRPCRequest& request) } } - if (!request.params[3].isNull() && rbfOptIn != SignalsOptInRBF(rawTx)) { + if (!rbf.isNull() && rbfOptIn != SignalsOptInRBF(rawTx)) { throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter combination: Sequence number(s) contradict replaceable option"); } + return rawTx; +} + +static UniValue createrawtransaction(const JSONRPCRequest& request) +{ + if (request.fHelp || request.params.size() < 2 || request.params.size() > 4) { + throw std::runtime_error( + // clang-format off + "createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] [{\"address\":amount},{\"data\":\"hex\"},...] ( locktime ) ( replaceable )\n" + "\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" + + "\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" + "4. replaceable (boolean, optional, 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.\n" + "\nResult:\n" + "\"transaction\" (string) hex string of the transaction\n" + + "\nExamples:\n" + + 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\\\"}]\"") + // clang-format on + ); + } + + RPCTypeCheck(request.params, { + UniValue::VARR, + UniValueType(), // ARR or OBJ, checked later + UniValue::VNUM, + UniValue::VBOOL + }, true + ); + + CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], request.params[3]); + return EncodeHexTx(rawTx); } @@ -806,7 +818,7 @@ UniValue SignTransaction(CMutableTransaction& mtx, const UniValue& prevTxsUnival } Coin newcoin; newcoin.out.scriptPubKey = scriptPubKey; - newcoin.out.nValue = 0; + newcoin.out.nValue = MAX_MONEY; if (prevOut.exists("amount")) { newcoin.out.nValue = AmountFromValue(find_value(prevOut, "amount")); } @@ -833,23 +845,7 @@ UniValue SignTransaction(CMutableTransaction& mtx, const UniValue& prevTxsUnival } } - int nHashType = SIGHASH_ALL; - if (!hashType.isNull()) { - static std::map<std::string, int> mapSigHashValues = { - {std::string("ALL"), int(SIGHASH_ALL)}, - {std::string("ALL|ANYONECANPAY"), int(SIGHASH_ALL|SIGHASH_ANYONECANPAY)}, - {std::string("NONE"), int(SIGHASH_NONE)}, - {std::string("NONE|ANYONECANPAY"), int(SIGHASH_NONE|SIGHASH_ANYONECANPAY)}, - {std::string("SINGLE"), int(SIGHASH_SINGLE)}, - {std::string("SINGLE|ANYONECANPAY"), int(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY)}, - }; - std::string strHashType = hashType.get_str(); - if (mapSigHashValues.count(strHashType)) { - nHashType = mapSigHashValues[strHashType]; - } else { - throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid sighash param"); - } - } + int nHashType = ParseSighashString(hashType); bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE); @@ -878,6 +874,11 @@ UniValue SignTransaction(CMutableTransaction& mtx, const UniValue& prevTxsUnival UpdateInput(txin, sigdata); + // amount must be specified for valid segwit signature + if (amount == MAX_MONEY && !txin.scriptWitness.IsNull()) { + throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing amount for %s", coin.out.ToString())); + } + ScriptError serror = SCRIPT_ERR_OK; if (!VerifyScript(txin.scriptSig, prevPubKey, &txin.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount), &serror)) { if (serror == SCRIPT_ERR_INVALID_STACK_OPERATION) { @@ -1253,6 +1254,553 @@ static UniValue testmempoolaccept(const JSONRPCRequest& request) 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; +} + +UniValue decodepsbt(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" + " \"non_witness_utxo\" : { (json object, optional) Decoded network transaction for non-witness UTXOs\n" + " ...\n" + " },\n" + " \"witness_utxo\" : { (json object, optional) Transaction output for witness 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" + " \"witness_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" + " \"final_scriptwitness\": [\"hex\", ...] (array of string) hex-encoded witness data (if any)\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" + " \"witness_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 + UniValue unknowns(UniValue::VOBJ); + for (auto entry : psbtx.unknown) { + unknowns.pushKV(HexStr(entry.first), HexStr(entry.second)); + } + result.pushKV("unknown", unknowns); + + // inputs + CAmount total_in = 0; + bool have_all_utxos = true; + UniValue inputs(UniValue::VARR); + for (unsigned int i = 0; i < psbtx.inputs.size(); ++i) { + const PSBTInput& input = psbtx.inputs[i]; + UniValue in(UniValue::VOBJ); + // UTXOs + if (!input.witness_utxo.IsNull()) { + const CTxOut& txout = input.witness_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("witness_utxo", out); + } else if (input.non_witness_utxo) { + UniValue non_wit(UniValue::VOBJ); + TxToUniv(*input.non_witness_utxo, uint256(), non_wit, false); + in.pushKV("non_witness_utxo", non_wit); + total_in += input.non_witness_utxo->vout[psbtx.tx->vin[i].prevout.n].nValue; + } 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 + if (input.sighash_type > 0) { + in.pushKV("sighash", SighashToStr((unsigned char)input.sighash_type)); + } + + // Redeem script and witness script + if (!input.redeem_script.empty()) { + UniValue r(UniValue::VOBJ); + ScriptToUniv(input.redeem_script, r, false); + in.pushKV("redeem_script", r); + } + if (!input.witness_script.empty()) { + UniValue r(UniValue::VOBJ); + ScriptToUniv(input.witness_script, r, false); + in.pushKV("witness_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 and scriptwitness + 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); + } + if (!input.final_script_witness.IsNull()) { + UniValue txinwitness(UniValue::VARR); + for (const auto& item : input.final_script_witness.stack) { + txinwitness.push_back(HexStr(item.begin(), item.end())); + } + in.pushKV("final_scriptwitness", txinwitness); + } + + // 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 + CAmount output_value = 0; + UniValue outputs(UniValue::VARR); + for (unsigned int i = 0; i < psbtx.outputs.size(); ++i) { + const PSBTOutput& output = psbtx.outputs[i]; + UniValue out(UniValue::VOBJ); + // Redeem script and witness script + if (!output.redeem_script.empty()) { + UniValue r(UniValue::VOBJ); + ScriptToUniv(output.redeem_script, r, false); + out.pushKV("redeem_script", r); + } + if (!output.witness_script.empty()) { + UniValue r(UniValue::VOBJ); + ScriptToUniv(output.witness_script, r, false); + out.pushKV("witness_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; +} + +UniValue combinepsbt(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 (unsigned int 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); + } + + PartiallySignedTransaction merged_psbt(psbtxs[0]); // Copy the first one + + // 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((unsigned char*)ssTx.data(), ssTx.size()); +} + +UniValue finalizepsbt(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_scriptSig and final_scriptWitness fields 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 (unsigned int 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, 1); + } + + 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 (unsigned int i = 0; i < mtx.vin.size(); ++i) { + mtx.vin[i].scriptSig = psbtx.inputs[i].final_script_sig; + mtx.vin[i].scriptWitness = psbtx.inputs[i].final_script_witness; + } + ssTx << mtx; + result.pushKV("hex", HexStr(ssTx.begin(), ssTx.end())); + } else { + ssTx << psbtx; + result.pushKV("psbt", EncodeBase64((unsigned char*)ssTx.data(), ssTx.size())); + } + result.pushKV("complete", complete); + + return result; +} + +UniValue createpsbt(const JSONRPCRequest& request) +{ + if (request.fHelp || request.params.size() < 2 || request.params.size() > 4) + throw std::runtime_error( + "createpsbt [{\"txid\":\"id\",\"vout\":n},...] [{\"address\":amount},{\"data\":\"hex\"},...] ( locktime ) ( replaceable )\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" + "4. replaceable (boolean, optional, 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.\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, + UniValue::VBOOL, + }, true + ); + + CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], request.params[3]); + + // Make a blank psbt + PartiallySignedTransaction psbtx; + psbtx.tx = rawTx; + for (unsigned int i = 0; i < rawTx.vin.size(); ++i) { + psbtx.inputs.push_back(PSBTInput()); + } + for (unsigned int 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((unsigned char*)ssTx.data(), ssTx.size()); +} + +UniValue converttopsbt(const JSONRPCRequest& request) +{ + if (request.fHelp || request.params.size() < 1 || request.params.size() > 3) + throw std::runtime_error( + "converttopsbt \"hexstring\" ( permitsigdata iswitness )\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" + "3. iswitness (boolean, optional) Whether the transaction hex is a serialized witness transaction.\n" + " If iswitness is not present, heuristic tests will be used in decoding. If true, only witness deserializaion\n" + " will be tried. If false, only non-witness deserialization wil be tried. Only has an effect if\n" + " permitsigdata is true.\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, UniValue::VBOOL}, true); + + // parse hex string from parameter + CMutableTransaction tx; + bool permitsigdata = request.params[1].isNull() ? false : request.params[1].get_bool(); + bool witness_specified = !request.params[2].isNull(); + bool iswitness = witness_specified ? request.params[2].get_bool() : false; + bool try_witness = permitsigdata ? (witness_specified ? iswitness : true) : false; + bool try_no_witness = permitsigdata ? (witness_specified ? !iswitness : true) : true; + if (!DecodeHexTx(tx, request.params[0].get_str(), try_no_witness, try_witness)) { + throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed"); + } + + // Remove all scriptSigs and scriptWitnesses from inputs + for (CTxIn& input : tx.vin) { + if ((!input.scriptSig.empty() || !input.scriptWitness.IsNull()) && (request.params[1].isNull() || (!request.params[1].isNull() && request.params[1].get_bool()))) { + throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Inputs must not have scriptSigs and scriptWitnesses"); + } + input.scriptSig.clear(); + input.scriptWitness.SetNull(); + } + + // Make a blank psbt + PartiallySignedTransaction psbtx; + psbtx.tx = tx; + for (unsigned int i = 0; i < tx.vin.size(); ++i) { + psbtx.inputs.push_back(PSBTInput()); + } + for (unsigned int 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((unsigned char*)ssTx.data(), ssTx.size()); +} + static const CRPCCommand commands[] = { // category name actor (function) argNames // --------------------- ------------------------ ----------------------- ---------- @@ -1265,6 +1813,11 @@ static const CRPCCommand commands[] = { "rawtransactions", "signrawtransaction", &signrawtransaction, {"hexstring","prevtxs","privkeys","sighashtype"} }, /* uses wallet if enabled */ { "rawtransactions", "signrawtransactionwithkey", &signrawtransactionwithkey, {"hexstring","privkeys","prevtxs","sighashtype"} }, { "rawtransactions", "testmempoolaccept", &testmempoolaccept, {"rawtxs","allowhighfees"} }, + { "rawtransactions", "decodepsbt", &decodepsbt, {"psbt"} }, + { "rawtransactions", "combinepsbt", &combinepsbt, {"txs"} }, + { "rawtransactions", "finalizepsbt", &finalizepsbt, {"psbt", "extract"} }, + { "rawtransactions", "createpsbt", &createpsbt, {"inputs","outputs","locktime","replaceable"} }, + { "rawtransactions", "converttopsbt", &converttopsbt, {"hexstring","permitsigdata","iswitness"} }, { "blockchain", "gettxoutproof", &gettxoutproof, {"txids", "blockhash"} }, { "blockchain", "verifytxoutproof", &verifytxoutproof, {"proof"} }, |