diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.test.include | 1 | ||||
| -rw-r--r-- | src/core_io.h | 5 | ||||
| -rw-r--r-- | src/core_read.cpp | 41 | ||||
| -rw-r--r-- | src/core_write.cpp | 23 | ||||
| -rw-r--r-- | src/pubkey.h | 1 | ||||
| -rw-r--r-- | src/rpc/client.cpp | 16 | ||||
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 705 | ||||
| -rw-r--r-- | src/rpc/rawtransaction.h | 3 | ||||
| -rw-r--r-- | src/script/sign.cpp | 201 | ||||
| -rw-r--r-- | src/script/sign.h | 568 | ||||
| -rw-r--r-- | src/wallet/rpcwallet.cpp | 511 | ||||
| -rw-r--r-- | src/wallet/rpcwallet.h | 3 | ||||
| -rw-r--r-- | src/wallet/test/psbt_wallet_tests.cpp | 74 |
13 files changed, 1978 insertions, 174 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 0c1516f4d5..02f2063504 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -94,6 +94,7 @@ BITCOIN_TESTS =\ if ENABLE_WALLET BITCOIN_TESTS += \ wallet/test/accounting_tests.cpp \ + wallet/test/psbt_wallet_tests.cpp \ wallet/test/wallet_tests.cpp \ wallet/test/wallet_crypto_tests.cpp \ wallet/test/coinselector_tests.cpp diff --git a/src/core_io.h b/src/core_io.h index 1d87d21d40..ebddcc2a04 100644 --- a/src/core_io.h +++ b/src/core_io.h @@ -14,6 +14,7 @@ class CBlock; class CScript; class CTransaction; struct CMutableTransaction; +struct PartiallySignedTransaction; class uint256; class UniValue; @@ -24,12 +25,16 @@ bool DecodeHexTx(CMutableTransaction& tx, const std::string& hex_tx, bool try_no bool DecodeHexBlk(CBlock&, const std::string& strHexBlk); uint256 ParseHashStr(const std::string&, const std::string& strName); std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strName); +bool DecodePSBT(PartiallySignedTransaction& psbt, const std::string& base64_tx, std::string& error); +int ParseSighashString(const UniValue& sighash); // core_write.cpp UniValue ValueFromAmount(const CAmount& amount); std::string FormatScript(const CScript& script); std::string EncodeHexTx(const CTransaction& tx, const int serializeFlags = 0); +std::string SighashToStr(unsigned char sighash_type); void ScriptPubKeyToUniv(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex); +void ScriptToUniv(const CScript& script, UniValue& out, bool include_address); void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry, bool include_hex = true, int serialize_flags = 0); #endif // BITCOIN_CORE_IO_H diff --git a/src/core_read.cpp b/src/core_read.cpp index 4d851610ef..067e1b91bd 100644 --- a/src/core_read.cpp +++ b/src/core_read.cpp @@ -7,6 +7,7 @@ #include <primitives/block.h> #include <primitives/transaction.h> #include <script/script.h> +#include <script/sign.h> #include <serialize.h> #include <streams.h> #include <univalue.h> @@ -160,6 +161,23 @@ bool DecodeHexBlk(CBlock& block, const std::string& strHexBlk) return true; } +bool DecodePSBT(PartiallySignedTransaction& psbt, const std::string& base64_tx, std::string& error) +{ + std::vector<unsigned char> tx_data = DecodeBase64(base64_tx.c_str()); + CDataStream ss_data(tx_data, SER_NETWORK, PROTOCOL_VERSION); + try { + ss_data >> psbt; + if (!ss_data.empty()) { + error = "extra data after PSBT"; + return false; + } + } catch (const std::exception& e) { + error = e.what(); + return false; + } + return true; +} + uint256 ParseHashStr(const std::string& strHex, const std::string& strName) { if (!IsHex(strHex)) // Note: IsHex("") is false @@ -179,3 +197,26 @@ std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strN throw std::runtime_error(strName + " must be hexadecimal string (not '" + strHex + "')"); return ParseHex(strHex); } + +int ParseSighashString(const UniValue& sighash) +{ + int hash_type = SIGHASH_ALL; + if (!sighash.isNull()) { + static std::map<std::string, int> map_sighash_values = { + {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 = sighash.get_str(); + const auto& it = map_sighash_values.find(strHashType); + if (it != map_sighash_values.end()) { + hash_type = it->second; + } else { + throw std::runtime_error(strHashType + " is not a valid sighash parameter."); + } + } + return hash_type; +} diff --git a/src/core_write.cpp b/src/core_write.cpp index ee6737201b..1272266235 100644 --- a/src/core_write.cpp +++ b/src/core_write.cpp @@ -70,6 +70,13 @@ const std::map<unsigned char, std::string> mapSigHashTypes = { {static_cast<unsigned char>(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY), std::string("SINGLE|ANYONECANPAY")}, }; +std::string SighashToStr(unsigned char sighash_type) +{ + const auto& it = mapSigHashTypes.find(sighash_type); + if (it == mapSigHashTypes.end()) return ""; + return it->second; +} + /** * Create the assembly string representation of a CScript object. * @param[in] script CScript object to convert into the asm string representation. @@ -128,6 +135,22 @@ std::string EncodeHexTx(const CTransaction& tx, const int serializeFlags) return HexStr(ssTx.begin(), ssTx.end()); } +void ScriptToUniv(const CScript& script, UniValue& out, bool include_address) +{ + out.pushKV("asm", ScriptToAsmStr(script)); + out.pushKV("hex", HexStr(script.begin(), script.end())); + + std::vector<std::vector<unsigned char>> solns; + txnouttype type; + Solver(script, type, solns); + out.pushKV("type", GetTxnOutputType(type)); + + CTxDestination address; + if (include_address && ExtractDestination(script, address)) { + out.pushKV("address", EncodeDestination(address)); + } +} + void ScriptPubKeyToUniv(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex) { diff --git a/src/pubkey.h b/src/pubkey.h index bb254547c8..0985273f34 100644 --- a/src/pubkey.h +++ b/src/pubkey.h @@ -107,6 +107,7 @@ public: //! Simple read-only vector-like interface to the pubkey data. unsigned int size() const { return GetLen(vch[0]); } + const unsigned char* data() const { return vch; } const unsigned char* begin() const { return vch; } const unsigned char* end() const { return vch + size(); } const unsigned char& operator[](unsigned int pos) const { return vch[pos]; } diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp index ce608631ff..593c59ca5e 100644 --- a/src/rpc/client.cpp +++ b/src/rpc/client.cpp @@ -110,6 +110,22 @@ static const CRPCConvertParam vRPCConvertParams[] = { "combinerawtransaction", 0, "txs" }, { "fundrawtransaction", 1, "options" }, { "fundrawtransaction", 2, "iswitness" }, + { "walletcreatefundedpsbt", 0, "inputs" }, + { "walletcreatefundedpsbt", 1, "outputs" }, + { "walletcreatefundedpsbt", 2, "locktime" }, + { "walletcreatefundedpsbt", 3, "replaceable" }, + { "walletcreatefundedpsbt", 4, "options" }, + { "walletcreatefundedpsbt", 5, "bip32derivs" }, + { "walletprocesspsbt", 1, "sign" }, + { "walletprocesspsbt", 3, "bip32derivs" }, + { "createpsbt", 0, "inputs" }, + { "createpsbt", 1, "outputs" }, + { "createpsbt", 2, "locktime" }, + { "createpsbt", 3, "replaceable" }, + { "combinepsbt", 0, "txs"}, + { "finalizepsbt", 1, "extract"}, + { "converttopsbt", 1, "permitsigdata"}, + { "converttopsbt", 2, "iswitness"}, { "gettxout", 1, "n" }, { "gettxout", 2, "include_mempool" }, { "gettxoutproof", 0, "txids" }, diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 499b0c5e16..bb94e11fea 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -5,6 +5,7 @@ #include <chain.h> #include <coins.h> +#include <compat/byteswap.h> #include <consensus/validation.h> #include <core_io.h> #include <index/txindex.h> @@ -337,80 +338,25 @@ static UniValue verifytxoutproof(const JSONRPCRequest& request) 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]; @@ -490,10 +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); } @@ -838,23 +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); @@ -1263,6 +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.push_back(Pair("hex", HexStr(ssTx.begin(), ssTx.end()))); + } else { + ssTx << psbtx; + result.push_back(Pair("psbt", EncodeBase64((unsigned char*)ssTx.data(), ssTx.size()))); + } + result.push_back(Pair("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 // --------------------- ------------------------ ----------------------- ---------- @@ -1275,6 +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"} }, diff --git a/src/rpc/rawtransaction.h b/src/rpc/rawtransaction.h index ec9d1f2cf0..52dccc90e8 100644 --- a/src/rpc/rawtransaction.h +++ b/src/rpc/rawtransaction.h @@ -12,4 +12,7 @@ class UniValue; /** Sign a transaction with the given keystore and previous transactions */ UniValue SignTransaction(CMutableTransaction& mtx, const UniValue& prevTxs, CBasicKeyStore *keystore, bool tempKeystore, const UniValue& hashType); +/** Create a transaction from univalue parameters */ +CMutableTransaction ConstructTransaction(const UniValue& inputs_in, const UniValue& outputs_in, const UniValue& locktime, const UniValue& rbf); + #endif // BITCOIN_RPC_RAWTRANSACTION_H diff --git a/src/script/sign.cpp b/src/script/sign.cpp index 60a8a2655d..f1ac1f411a 100644 --- a/src/script/sign.cpp +++ b/src/script/sign.cpp @@ -49,9 +49,10 @@ static bool GetCScript(const SigningProvider& provider, const SignatureData& sig return false; } -static bool GetPubKey(const SigningProvider& provider, const SignatureData& sigdata, const CKeyID& address, CPubKey& pubkey) +static bool GetPubKey(const SigningProvider& provider, SignatureData& sigdata, const CKeyID& address, CPubKey& pubkey) { if (provider.GetPubKey(address, pubkey)) { + sigdata.misc_pubkeys.emplace(pubkey.GetID(), pubkey); return true; } // Look for pubkey in all partial sigs @@ -60,6 +61,12 @@ static bool GetPubKey(const SigningProvider& provider, const SignatureData& sigd pubkey = it->second.first; return true; } + // Look for pubkey in pubkey list + const auto& pk_it = sigdata.misc_pubkeys.find(address); + if (pk_it != sigdata.misc_pubkeys.end()) { + pubkey = pk_it->second; + return true; + } return false; } @@ -70,9 +77,9 @@ static bool CreateSig(const BaseSignatureCreator& creator, SignatureData& sigdat sig_out = it->second.second; return true; } + CPubKey pubkey; + GetPubKey(provider, sigdata, keyid, pubkey); if (creator.CreateSig(provider, sig_out, keyid, scriptcode, sigversion)) { - CPubKey pubkey; - GetPubKey(provider, sigdata, keyid, pubkey); auto i = sigdata.signatures.emplace(keyid, SigPair(pubkey, sig_out)); assert(i.second); return true; @@ -200,6 +207,7 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato txnouttype subType; solved = solved && SignStep(provider, creator, witnessscript, result, subType, SigVersion::WITNESS_V0, sigdata); sigdata.scriptWitness.stack = result; + sigdata.witness = true; result.clear(); } else if (solved && whichType == TX_WITNESS_V0_SCRIPTHASH) @@ -210,7 +218,10 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato solved = solved && SignStep(provider, creator, witnessscript, result, subType, SigVersion::WITNESS_V0, sigdata) && subType != TX_SCRIPTHASH && subType != TX_WITNESS_V0_SCRIPTHASH && subType != TX_WITNESS_V0_KEYHASH; result.push_back(std::vector<unsigned char>(witnessscript.begin(), witnessscript.end())); sigdata.scriptWitness.stack = result; + sigdata.witness = true; result.clear(); + } else if (solved && whichType == TX_WITNESS_UNKNOWN) { + sigdata.witness = true; } if (P2SH) { @@ -223,6 +234,32 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato return sigdata.complete; } +bool SignPSBTInput(const SigningProvider& provider, const CMutableTransaction& tx, PSBTInput& input, SignatureData& sigdata, int index, int sighash) +{ + // if this input has a final scriptsig or scriptwitness, don't do anything with it + if (!input.final_script_sig.empty() || !input.final_script_witness.IsNull()) { + return true; + } + + // Fill SignatureData with input info + input.FillSignatureData(sigdata); + + // Get UTXO + CTxOut utxo; + if (input.non_witness_utxo) { + utxo = input.non_witness_utxo->vout[tx.vin[index].prevout.n]; + } else if (!input.witness_utxo.IsNull()) { + utxo = input.witness_utxo; + } else { + return false; + } + + MutableTransactionSignatureCreator creator(&tx, index, utxo.nValue, sighash); + bool sig_complete = ProduceSignature(provider, creator, utxo.scriptPubKey, sigdata); + input.FromSignatureData(sigdata); + return sig_complete; +} + class SignatureExtractorChecker final : public BaseSignatureChecker { private: @@ -429,3 +466,161 @@ bool IsSolvable(const SigningProvider& provider, const CScript& script) } return false; } + + +bool PartiallySignedTransaction::IsNull() const +{ + return !tx && inputs.empty() && outputs.empty() && unknown.empty(); +} + +void PartiallySignedTransaction::Merge(const PartiallySignedTransaction& psbt) +{ + for (unsigned int i = 0; i < inputs.size(); ++i) { + inputs[i].Merge(psbt.inputs[i]); + } + for (unsigned int i = 0; i < outputs.size(); ++i) { + outputs[i].Merge(psbt.outputs[i]); + } +} + +bool PartiallySignedTransaction::IsSane() const +{ + for (PSBTInput input : inputs) { + if (!input.IsSane()) return false; + } + return true; +} + +bool PSBTInput::IsNull() const +{ + return !non_witness_utxo && witness_utxo.IsNull() && partial_sigs.empty() && unknown.empty() && hd_keypaths.empty() && redeem_script.empty() && witness_script.empty(); +} + +void PSBTInput::FillSignatureData(SignatureData& sigdata) const +{ + if (!final_script_sig.empty()) { + sigdata.scriptSig = final_script_sig; + sigdata.complete = true; + } + if (!final_script_witness.IsNull()) { + sigdata.scriptWitness = final_script_witness; + sigdata.complete = true; + } + if (sigdata.complete) { + return; + } + + sigdata.signatures.insert(partial_sigs.begin(), partial_sigs.end()); + if (!redeem_script.empty()) { + sigdata.redeem_script = redeem_script; + } + if (!witness_script.empty()) { + sigdata.witness_script = witness_script; + } + for (const auto& key_pair : hd_keypaths) { + sigdata.misc_pubkeys.emplace(key_pair.first.GetID(), key_pair.first); + } +} + +void PSBTInput::FromSignatureData(const SignatureData& sigdata) +{ + if (sigdata.complete) { + partial_sigs.clear(); + hd_keypaths.clear(); + redeem_script.clear(); + witness_script.clear(); + + if (!sigdata.scriptSig.empty()) { + final_script_sig = sigdata.scriptSig; + } + if (!sigdata.scriptWitness.IsNull()) { + final_script_witness = sigdata.scriptWitness; + } + return; + } + + partial_sigs.insert(sigdata.signatures.begin(), sigdata.signatures.end()); + if (redeem_script.empty() && !sigdata.redeem_script.empty()) { + redeem_script = sigdata.redeem_script; + } + if (witness_script.empty() && !sigdata.witness_script.empty()) { + witness_script = sigdata.witness_script; + } +} + +void PSBTInput::Merge(const PSBTInput& input) +{ + if (!non_witness_utxo && input.non_witness_utxo) non_witness_utxo = input.non_witness_utxo; + if (witness_utxo.IsNull() && !input.witness_utxo.IsNull()) { + witness_utxo = input.witness_utxo; + non_witness_utxo = nullptr; // Clear out any non-witness utxo when we set a witness one. + } + + partial_sigs.insert(input.partial_sigs.begin(), input.partial_sigs.end()); + hd_keypaths.insert(input.hd_keypaths.begin(), input.hd_keypaths.end()); + unknown.insert(input.unknown.begin(), input.unknown.end()); + + if (redeem_script.empty() && !input.redeem_script.empty()) redeem_script = input.redeem_script; + if (witness_script.empty() && !input.witness_script.empty()) witness_script = input.witness_script; + if (final_script_sig.empty() && !input.final_script_sig.empty()) final_script_sig = input.final_script_sig; + if (final_script_witness.IsNull() && !input.final_script_witness.IsNull()) final_script_witness = input.final_script_witness; +} + +bool PSBTInput::IsSane() const +{ + // Cannot have both witness and non-witness utxos + if (!witness_utxo.IsNull() && non_witness_utxo) return false; + + // If we have a witness_script or a scriptWitness, we must also have a witness utxo + if (!witness_script.empty() && witness_utxo.IsNull()) return false; + if (!final_script_witness.IsNull() && witness_utxo.IsNull()) return false; + + return true; +} + +void PSBTOutput::FillSignatureData(SignatureData& sigdata) const +{ + if (!redeem_script.empty()) { + sigdata.redeem_script = redeem_script; + } + if (!witness_script.empty()) { + sigdata.witness_script = witness_script; + } + for (const auto& key_pair : hd_keypaths) { + sigdata.misc_pubkeys.emplace(key_pair.first.GetID(), key_pair.first); + } +} + +void PSBTOutput::FromSignatureData(const SignatureData& sigdata) +{ + if (redeem_script.empty() && !sigdata.redeem_script.empty()) { + redeem_script = sigdata.redeem_script; + } + if (witness_script.empty() && !sigdata.witness_script.empty()) { + witness_script = sigdata.witness_script; + } +} + +bool PSBTOutput::IsNull() const +{ + return redeem_script.empty() && witness_script.empty() && hd_keypaths.empty() && unknown.empty(); +} + +void PSBTOutput::Merge(const PSBTOutput& output) +{ + hd_keypaths.insert(output.hd_keypaths.begin(), output.hd_keypaths.end()); + unknown.insert(output.unknown.begin(), output.unknown.end()); + + if (redeem_script.empty() && !output.redeem_script.empty()) redeem_script = output.redeem_script; + if (witness_script.empty() && !output.witness_script.empty()) witness_script = output.witness_script; +} + +bool PublicOnlySigningProvider::GetCScript(const CScriptID &scriptid, CScript& script) const +{ + return m_provider->GetCScript(scriptid, script); +} + +bool PublicOnlySigningProvider::GetPubKey(const CKeyID &address, CPubKey& pubkey) const +{ + return m_provider->GetPubKey(address, pubkey); +} diff --git a/src/script/sign.h b/src/script/sign.h index 3666859641..e3a6196b28 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -6,7 +6,11 @@ #ifndef BITCOIN_SCRIPT_SIGN_H #define BITCOIN_SCRIPT_SIGN_H +#include <boost/optional.hpp> +#include <hash.h> +#include <pubkey.h> #include <script/interpreter.h> +#include <streams.h> class CKey; class CKeyID; @@ -28,6 +32,17 @@ public: extern const SigningProvider& DUMMY_SIGNING_PROVIDER; +class PublicOnlySigningProvider : public SigningProvider +{ +private: + const SigningProvider* m_provider; + +public: + PublicOnlySigningProvider(const SigningProvider* provider) : m_provider(provider) {} + bool GetCScript(const CScriptID &scriptid, CScript& script) const; + bool GetPubKey(const CKeyID &address, CPubKey& pubkey) const; +}; + /** Interface for signature creators. */ class BaseSignatureCreator { public: @@ -62,17 +77,567 @@ typedef std::pair<CPubKey, std::vector<unsigned char>> SigPair; // in order to construct final scriptSigs and scriptWitnesses. struct SignatureData { bool complete = false; ///< Stores whether the scriptSig and scriptWitness are complete + bool witness = false; ///< Stores whether the input this SigData corresponds to is a witness input CScript scriptSig; ///< The scriptSig of an input. Contains complete signatures or the traditional partial signatures format CScript redeem_script; ///< The redeemScript (if any) for the input CScript witness_script; ///< The witnessScript (if any) for the input. witnessScripts are used in P2WSH outputs. CScriptWitness scriptWitness; ///< The scriptWitness of an input. Contains complete signatures or the traditional partial signatures format. scriptWitness is part of a transaction input per BIP 144. std::map<CKeyID, SigPair> signatures; ///< BIP 174 style partial signatures for the input. May contain all signatures necessary for producing a final scriptSig or scriptWitness. + std::map<CKeyID, CPubKey> misc_pubkeys; SignatureData() {} explicit SignatureData(const CScript& script) : scriptSig(script) {} void MergeSignatureData(SignatureData sigdata); }; +// Magic bytes +static constexpr uint8_t PSBT_MAGIC_BYTES[5] = {'p', 's', 'b', 't', 0xff}; + +// Global types +static constexpr uint8_t PSBT_GLOBAL_UNSIGNED_TX = 0x00; + +// Input types +static constexpr uint8_t PSBT_IN_NON_WITNESS_UTXO = 0x00; +static constexpr uint8_t PSBT_IN_WITNESS_UTXO = 0x01; +static constexpr uint8_t PSBT_IN_PARTIAL_SIG = 0x02; +static constexpr uint8_t PSBT_IN_SIGHASH = 0x03; +static constexpr uint8_t PSBT_IN_REDEEMSCRIPT = 0x04; +static constexpr uint8_t PSBT_IN_WITNESSSCRIPT = 0x05; +static constexpr uint8_t PSBT_IN_BIP32_DERIVATION = 0x06; +static constexpr uint8_t PSBT_IN_SCRIPTSIG = 0x07; +static constexpr uint8_t PSBT_IN_SCRIPTWITNESS = 0x08; + +// Output types +static constexpr uint8_t PSBT_OUT_REDEEMSCRIPT = 0x00; +static constexpr uint8_t PSBT_OUT_WITNESSSCRIPT = 0x01; +static constexpr uint8_t PSBT_OUT_BIP32_DERIVATION = 0x02; + +// The separator is 0x00. Reading this in means that the unserializer can interpret it +// as a 0 length key which indicates that this is the separator. The separator has no value. +static constexpr uint8_t PSBT_SEPARATOR = 0x00; + +// Takes a stream and multiple arguments and serializes them into a vector and then into the stream +// The resulting output into the stream has the total serialized length of all of the objects followed by all objects concatenated with each other. +template<typename Stream, typename... X> +void SerializeToVector(Stream& s, const X&... args) +{ + std::vector<unsigned char> ret; + CVectorWriter ss(SER_NETWORK, PROTOCOL_VERSION, ret, 0); + SerializeMany(ss, args...); + s << ret; +} + +// Takes a stream and multiple arguments and unserializes them first as a vector then each object individually in the order provided in the arguments +template<typename Stream, typename... X> +void UnserializeFromVector(Stream& s, X&... args) +{ + std::vector<unsigned char> data; + s >> data; + CDataStream ss(data, SER_NETWORK, PROTOCOL_VERSION); + UnserializeMany(ss, args...); + if (!ss.eof()) { + throw std::ios_base::failure("Size of value was not the stated size"); + } +} + +// Deserialize HD keypaths into a map +template<typename Stream> +void DeserializeHDKeypaths(Stream& s, const std::vector<unsigned char>& key, std::map<CPubKey, std::vector<uint32_t>>& hd_keypaths) +{ + // Make sure that the key is the size of pubkey + 1 + if (key.size() != CPubKey::PUBLIC_KEY_SIZE + 1 && key.size() != CPubKey::COMPRESSED_PUBLIC_KEY_SIZE + 1) { + throw std::ios_base::failure("Size of key was not the expected size for the type BIP32 keypath"); + } + // Read in the pubkey from key + CPubKey pubkey(key.begin() + 1, key.end()); + if (!pubkey.IsFullyValid()) { + throw std::ios_base::failure("Invalid pubkey"); + } + if (hd_keypaths.count(pubkey) > 0) { + throw std::ios_base::failure("Duplicate Key, pubkey derivation path already provided"); + } + + // Read in key path + uint64_t value_len = ReadCompactSize(s); + std::vector<uint32_t> keypath; + for (unsigned int i = 0; i < value_len; i += sizeof(uint32_t)) { + uint32_t index; + s >> index; + keypath.push_back(index); + } + + // Add to map + hd_keypaths.emplace(pubkey, keypath); +} + +// Serialize HD keypaths to a stream from a map +template<typename Stream> +void SerializeHDKeypaths(Stream& s, const std::map<CPubKey, std::vector<uint32_t>>& hd_keypaths, uint8_t type) +{ + for (auto keypath_pair : hd_keypaths) { + SerializeToVector(s, type, MakeSpan(keypath_pair.first)); + WriteCompactSize(s, keypath_pair.second.size() * sizeof(uint32_t)); + for (auto& path : keypath_pair.second) { + s << path; + } + } +} + +/** A structure for PSBTs which contain per-input information */ +struct PSBTInput +{ + CTransactionRef non_witness_utxo; + CTxOut witness_utxo; + CScript redeem_script; + CScript witness_script; + CScript final_script_sig; + CScriptWitness final_script_witness; + std::map<CPubKey, std::vector<uint32_t>> hd_keypaths; + std::map<CKeyID, SigPair> partial_sigs; + std::map<std::vector<unsigned char>, std::vector<unsigned char>> unknown; + int sighash_type = 0; + + bool IsNull() const; + void FillSignatureData(SignatureData& sigdata) const; + void FromSignatureData(const SignatureData& sigdata); + void Merge(const PSBTInput& input); + bool IsSane() const; + PSBTInput() {} + + template <typename Stream> + inline void Serialize(Stream& s) const { + // Write the utxo + // If there is a non-witness utxo, then don't add the witness one. + if (non_witness_utxo) { + SerializeToVector(s, PSBT_IN_NON_WITNESS_UTXO); + SerializeToVector(s, non_witness_utxo); + } else if (!witness_utxo.IsNull()) { + SerializeToVector(s, PSBT_IN_WITNESS_UTXO); + SerializeToVector(s, witness_utxo); + } + + if (final_script_sig.empty() && final_script_witness.IsNull()) { + // Write any partial signatures + for (auto sig_pair : partial_sigs) { + SerializeToVector(s, PSBT_IN_PARTIAL_SIG, MakeSpan(sig_pair.second.first)); + s << sig_pair.second.second; + } + + // Write the sighash type + if (sighash_type > 0) { + SerializeToVector(s, PSBT_IN_SIGHASH); + SerializeToVector(s, sighash_type); + } + + // Write the redeem script + if (!redeem_script.empty()) { + SerializeToVector(s, PSBT_IN_REDEEMSCRIPT); + s << redeem_script; + } + + // Write the witness script + if (!witness_script.empty()) { + SerializeToVector(s, PSBT_IN_WITNESSSCRIPT); + s << witness_script; + } + + // Write any hd keypaths + SerializeHDKeypaths(s, hd_keypaths, PSBT_IN_BIP32_DERIVATION); + } + + // Write script sig + if (!final_script_sig.empty()) { + SerializeToVector(s, PSBT_IN_SCRIPTSIG); + s << final_script_sig; + } + // write script witness + if (!final_script_witness.IsNull()) { + SerializeToVector(s, PSBT_IN_SCRIPTWITNESS); + SerializeToVector(s, final_script_witness.stack); + } + + // Write unknown things + for (auto& entry : unknown) { + s << entry.first; + s << entry.second; + } + + s << PSBT_SEPARATOR; + } + + + template <typename Stream> + inline void Unserialize(Stream& s) { + // Read loop + while(!s.empty()) { + // Read + std::vector<unsigned char> key; + s >> key; + + // the key is empty if that was actually a separator byte + // This is a special case for key lengths 0 as those are not allowed (except for separator) + if (key.empty()) return; + + // First byte of key is the type + unsigned char type = key[0]; + + // Do stuff based on type + switch(type) { + case PSBT_IN_NON_WITNESS_UTXO: + if (non_witness_utxo) { + throw std::ios_base::failure("Duplicate Key, input non-witness utxo already provided"); + } + UnserializeFromVector(s, non_witness_utxo); + break; + case PSBT_IN_WITNESS_UTXO: + if (!witness_utxo.IsNull()) { + throw std::ios_base::failure("Duplicate Key, input witness utxo already provided"); + } + UnserializeFromVector(s, witness_utxo); + break; + case PSBT_IN_PARTIAL_SIG: + { + // Make sure that the key is the size of pubkey + 1 + if (key.size() != CPubKey::PUBLIC_KEY_SIZE + 1 && key.size() != CPubKey::COMPRESSED_PUBLIC_KEY_SIZE + 1) { + throw std::ios_base::failure("Size of key was not the expected size for the type partial signature pubkey"); + } + // Read in the pubkey from key + CPubKey pubkey(key.begin() + 1, key.end()); + if (!pubkey.IsFullyValid()) { + throw std::ios_base::failure("Invalid pubkey"); + } + if (partial_sigs.count(pubkey.GetID()) > 0) { + throw std::ios_base::failure("Duplicate Key, input partial signature for pubkey already provided"); + } + + // Read in the signature from value + std::vector<unsigned char> sig; + s >> sig; + + // Add to list + partial_sigs.emplace(pubkey.GetID(), SigPair(pubkey, std::move(sig))); + break; + } + case PSBT_IN_SIGHASH: + if (sighash_type > 0) { + throw std::ios_base::failure("Duplicate Key, input sighash type already provided"); + } + UnserializeFromVector(s, sighash_type); + break; + case PSBT_IN_REDEEMSCRIPT: + { + if (!redeem_script.empty()) { + throw std::ios_base::failure("Duplicate Key, input redeemScript already provided"); + } + s >> redeem_script; + break; + } + case PSBT_IN_WITNESSSCRIPT: + { + if (!witness_script.empty()) { + throw std::ios_base::failure("Duplicate Key, input witnessScript already provided"); + } + s >> witness_script; + break; + } + case PSBT_IN_BIP32_DERIVATION: + { + DeserializeHDKeypaths(s, key, hd_keypaths); + break; + } + case PSBT_IN_SCRIPTSIG: + { + if (!final_script_sig.empty()) { + throw std::ios_base::failure("Duplicate Key, input final scriptSig already provided"); + } + s >> final_script_sig; + break; + } + case PSBT_IN_SCRIPTWITNESS: + { + if (!final_script_witness.IsNull()) { + throw std::ios_base::failure("Duplicate Key, input final scriptWitness already provided"); + } + UnserializeFromVector(s, final_script_witness.stack); + break; + } + // Unknown stuff + default: + if (unknown.count(key) > 0) { + throw std::ios_base::failure("Duplicate Key, key for unknown value already provided"); + } + // Read in the value + std::vector<unsigned char> val_bytes; + s >> val_bytes; + unknown.emplace(std::move(key), std::move(val_bytes)); + break; + } + } + } + + template <typename Stream> + PSBTInput(deserialize_type, Stream& s) { + Unserialize(s); + } +}; + +/** A structure for PSBTs which contains per output information */ +struct PSBTOutput +{ + CScript redeem_script; + CScript witness_script; + std::map<CPubKey, std::vector<uint32_t>> hd_keypaths; + std::map<std::vector<unsigned char>, std::vector<unsigned char>> unknown; + + bool IsNull() const; + void FillSignatureData(SignatureData& sigdata) const; + void FromSignatureData(const SignatureData& sigdata); + void Merge(const PSBTOutput& output); + bool IsSane() const; + PSBTOutput() {} + + template <typename Stream> + inline void Serialize(Stream& s) const { + // Write the redeem script + if (!redeem_script.empty()) { + SerializeToVector(s, PSBT_OUT_REDEEMSCRIPT); + s << redeem_script; + } + + // Write the witness script + if (!witness_script.empty()) { + SerializeToVector(s, PSBT_OUT_WITNESSSCRIPT); + s << witness_script; + } + + // Write any hd keypaths + SerializeHDKeypaths(s, hd_keypaths, PSBT_OUT_BIP32_DERIVATION); + + // Write unknown things + for (auto& entry : unknown) { + s << entry.first; + s << entry.second; + } + + s << PSBT_SEPARATOR; + } + + + template <typename Stream> + inline void Unserialize(Stream& s) { + // Read loop + while(!s.empty()) { + // Read + std::vector<unsigned char> key; + s >> key; + + // the key is empty if that was actually a separator byte + // This is a special case for key lengths 0 as those are not allowed (except for separator) + if (key.empty()) return; + + // First byte of key is the type + unsigned char type = key[0]; + + // Do stuff based on type + switch(type) { + case PSBT_OUT_REDEEMSCRIPT: + { + if (!redeem_script.empty()) { + throw std::ios_base::failure("Duplicate Key, output redeemScript already provided"); + } + s >> redeem_script; + break; + } + case PSBT_OUT_WITNESSSCRIPT: + { + if (!witness_script.empty()) { + throw std::ios_base::failure("Duplicate Key, output witnessScript already provided"); + } + s >> witness_script; + break; + } + case PSBT_OUT_BIP32_DERIVATION: + { + DeserializeHDKeypaths(s, key, hd_keypaths); + break; + } + // Unknown stuff + default: { + if (unknown.count(key) > 0) { + throw std::ios_base::failure("Duplicate Key, key for unknown value already provided"); + } + // Read in the value + std::vector<unsigned char> val_bytes; + s >> val_bytes; + unknown.emplace(std::move(key), std::move(val_bytes)); + break; + } + } + } + } + + template <typename Stream> + PSBTOutput(deserialize_type, Stream& s) { + Unserialize(s); + } +}; + +/** A version of CTransaction with the PSBT format*/ +struct PartiallySignedTransaction +{ + boost::optional<CMutableTransaction> tx; + std::vector<PSBTInput> inputs; + std::vector<PSBTOutput> outputs; + std::map<std::vector<unsigned char>, std::vector<unsigned char>> unknown; + + bool IsNull() const; + void Merge(const PartiallySignedTransaction& psbt); + bool IsSane() const; + PartiallySignedTransaction() {} + PartiallySignedTransaction(const PartiallySignedTransaction& psbt_in) : tx(psbt_in.tx), inputs(psbt_in.inputs), outputs(psbt_in.outputs), unknown(psbt_in.unknown) {} + + // Only checks if they refer to the same transaction + friend bool operator==(const PartiallySignedTransaction& a, const PartiallySignedTransaction &b) + { + return a.tx->GetHash() == b.tx->GetHash(); + } + friend bool operator!=(const PartiallySignedTransaction& a, const PartiallySignedTransaction &b) + { + return !(a == b); + } + + template <typename Stream> + inline void Serialize(Stream& s) const { + + // magic bytes + s << PSBT_MAGIC_BYTES; + + // unsigned tx flag + SerializeToVector(s, PSBT_GLOBAL_UNSIGNED_TX); + + // Write serialized tx to a stream + SerializeToVector(s, *tx); + + // Write the unknown things + for (auto& entry : unknown) { + s << entry.first; + s << entry.second; + } + + // Separator + s << PSBT_SEPARATOR; + + // Write inputs + for (const PSBTInput& input : inputs) { + s << input; + } + // Write outputs + for (const PSBTOutput& output : outputs) { + s << output; + } + } + + + template <typename Stream> + inline void Unserialize(Stream& s) { + // Read the magic bytes + uint8_t magic[5]; + s >> magic; + if (!std::equal(magic, magic + 5, PSBT_MAGIC_BYTES)) { + throw std::ios_base::failure("Invalid PSBT magic bytes"); + } + + // Read global data + while(!s.empty()) { + // Read + std::vector<unsigned char> key; + s >> key; + + // the key is empty if that was actually a separator byte + // This is a special case for key lengths 0 as those are not allowed (except for separator) + if (key.empty()) break; + + // First byte of key is the type + unsigned char type = key[0]; + + // Do stuff based on type + switch(type) { + case PSBT_GLOBAL_UNSIGNED_TX: + { + if (tx) { + throw std::ios_base::failure("Duplicate Key, unsigned tx already provided"); + } + CMutableTransaction mtx; + UnserializeFromVector(s, mtx); + tx = std::move(mtx); + // Make sure that all scriptSigs and scriptWitnesses are empty + for (const CTxIn& txin : tx->vin) { + if (!txin.scriptSig.empty() || !txin.scriptWitness.IsNull()) { + throw std::ios_base::failure("Unsigned tx does not have empty scriptSigs and scriptWitnesses."); + } + } + break; + } + // Unknown stuff + default: { + if (unknown.count(key) > 0) { + throw std::ios_base::failure("Duplicate Key, key for unknown value already provided"); + } + // Read in the value + std::vector<unsigned char> val_bytes; + s >> val_bytes; + unknown.emplace(std::move(key), std::move(val_bytes)); + } + } + } + + // Make sure that we got an unsigned tx + if (!tx) { + throw std::ios_base::failure("No unsigned transcation was provided"); + } + + // Read input data + unsigned int i = 0; + while (!s.empty() && i < tx->vin.size()) { + PSBTInput input; + s >> input; + inputs.push_back(input); + + // Make sure the non-witness utxo matches the outpoint + if (input.non_witness_utxo && input.non_witness_utxo->GetHash() != tx->vin[i].prevout.hash) { + throw std::ios_base::failure("Non-witness UTXO does not match outpoint hash"); + } + ++i; + } + // Make sure that the number of inputs matches the number of inputs in the transaction + if (inputs.size() != tx->vin.size()) { + throw std::ios_base::failure("Inputs provided does not match the number of inputs in transaction."); + } + + // Read output data + i = 0; + while (!s.empty() && i < tx->vout.size()) { + PSBTOutput output; + s >> output; + outputs.push_back(output); + ++i; + } + // Make sure that the number of outputs matches the number of outputs in the transaction + if (outputs.size() != tx->vout.size()) { + throw std::ios_base::failure("Outputs provided does not match the number of outputs in transaction."); + } + // Sanity check + if (!IsSane()) { + throw std::ios_base::failure("PSBT is not sane."); + } + } + + template <typename Stream> + PartiallySignedTransaction(deserialize_type, Stream& s) { + Unserialize(s); + } +}; + /** Produce a script signature using a generic signature creator. */ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreator& creator, const CScript& scriptPubKey, SignatureData& sigdata); @@ -80,6 +645,9 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato bool SignSignature(const SigningProvider &provider, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType); bool SignSignature(const SigningProvider &provider, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType); +/** Signs a PSBTInput */ +bool SignPSBTInput(const SigningProvider& provider, const CMutableTransaction& tx, PSBTInput& input, SignatureData& sigdata, int index, int sighash = 1); + /** Extract signature data from a transaction input, and insert it. */ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn, const CTxOut& txout); void UpdateInput(CTxIn& input, const SignatureData& data); diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp index 893310cf2f..78ea5eac92 100644 --- a/src/wallet/rpcwallet.cpp +++ b/src/wallet/rpcwallet.cpp @@ -3432,95 +3432,25 @@ static UniValue listunspent(const JSONRPCRequest& request) return results; } -static UniValue fundrawtransaction(const JSONRPCRequest& request) +void FundTransaction(CWallet* const pwallet, CMutableTransaction& tx, CAmount& fee_out, int& change_position, UniValue options) { - std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request); - CWallet* const pwallet = wallet.get(); - - if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) { - return NullUniValue; - } - - if (request.fHelp || request.params.size() < 1 || request.params.size() > 3) - throw std::runtime_error( - "fundrawtransaction \"hexstring\" ( options iswitness )\n" - "\nAdd inputs to a transaction until it has enough in value to meet its out value.\n" - "This will not modify existing inputs, and will add at most one change output to the outputs.\n" - "No existing outputs will be modified unless \"subtractFeeFromOutputs\" is specified.\n" - "Note that inputs which were signed may need to be resigned after completion since in/outputs have been added.\n" - "The inputs added will not be signed, use signrawtransaction for that.\n" - "Note that all existing inputs must have their previous output transaction be in the wallet.\n" - "Note that all inputs selected must be of standard form and P2SH scripts must be\n" - "in the wallet using importaddress or addmultisigaddress (to calculate fees).\n" - "You can see whether this is the case by checking the \"solvable\" field in the listunspent output.\n" - "Only pay-to-pubkey, multisig, and P2SH versions thereof are currently supported for watch-only\n" - "\nArguments:\n" - "1. \"hexstring\" (string, required) The hex string of the raw transaction\n" - "2. options (object, optional)\n" - " {\n" - " \"changeAddress\" (string, optional, default pool address) The bitcoin address to receive the change\n" - " \"changePosition\" (numeric, optional, default random) The index of the change output\n" - " \"change_type\" (string, optional) The output type to use. Only valid if changeAddress is not specified. Options are \"legacy\", \"p2sh-segwit\", and \"bech32\". Default is set by -changetype.\n" - " \"includeWatching\" (boolean, optional, default false) Also select inputs which are watch only\n" - " \"lockUnspents\" (boolean, optional, default false) Lock selected unspent outputs\n" - " \"feeRate\" (numeric, optional, default not set: makes wallet determine the fee) Set a specific fee rate in " + CURRENCY_UNIT + "/kB\n" - " \"subtractFeeFromOutputs\" (array, optional) A json array of integers.\n" - " The fee will be equally deducted from the amount of each specified output.\n" - " The outputs are specified by their zero-based index, before any change output is added.\n" - " Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n" - " If no outputs are specified here, the sender pays the fee.\n" - " [vout_index,...]\n" - " \"replaceable\" (boolean, optional) Marks this transaction as BIP125 replaceable.\n" - " Allows this transaction to be replaced by a transaction with higher fees\n" - " \"conf_target\" (numeric, optional) Confirmation target (in blocks)\n" - " \"estimate_mode\" (string, optional, default=UNSET) The fee estimate mode, must be one of:\n" - " \"UNSET\"\n" - " \"ECONOMICAL\"\n" - " \"CONSERVATIVE\"\n" - " }\n" - " for backward compatibility: passing in a true instead of an object will result in {\"includeWatching\":true}\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\n" - - "\nResult:\n" - "{\n" - " \"hex\": \"value\", (string) The resulting raw transaction (hex-encoded string)\n" - " \"fee\": n, (numeric) Fee in " + CURRENCY_UNIT + " the resulting transaction pays\n" - " \"changepos\": n (numeric) The position of the added change output, or -1\n" - "}\n" - "\nExamples:\n" - "\nCreate a transaction with no inputs\n" - + HelpExampleCli("createrawtransaction", "\"[]\" \"{\\\"myaddress\\\":0.01}\"") + - "\nAdd sufficient unsigned inputs to meet the output value\n" - + HelpExampleCli("fundrawtransaction", "\"rawtransactionhex\"") + - "\nSign the transaction\n" - + HelpExampleCli("signrawtransaction", "\"fundedtransactionhex\"") + - "\nSend the transaction\n" - + HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"") - ); - - RPCTypeCheck(request.params, {UniValue::VSTR}); - // Make sure the results are valid at least up to the most recent block // the user could have gotten from another RPC command prior to now pwallet->BlockUntilSyncedToCurrentChain(); CCoinControl coinControl; - int changePosition = -1; + change_position = -1; bool lockUnspents = false; UniValue subtractFeeFromOutputs; std::set<int> setSubtractFeeFromOutputs; - if (!request.params[1].isNull()) { - if (request.params[1].type() == UniValue::VBOOL) { + if (!options.isNull()) { + if (options.type() == UniValue::VBOOL) { // backward compatibility bool only fallback - coinControl.fAllowWatchOnly = request.params[1].get_bool(); + coinControl.fAllowWatchOnly = options.get_bool(); } else { - RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VOBJ, UniValue::VBOOL}); - - UniValue options = request.params[1]; - + RPCTypeCheckArgument(options, UniValue::VOBJ); RPCTypeCheckObj(options, { {"changeAddress", UniValueType(UniValue::VSTR)}, @@ -3547,7 +3477,7 @@ static UniValue fundrawtransaction(const JSONRPCRequest& request) } if (options.exists("changePosition")) - changePosition = options["changePosition"].get_int(); + change_position = options["changePosition"].get_int(); if (options.exists("change_type")) { if (options.exists("changeAddress")) { @@ -3594,18 +3524,10 @@ static UniValue fundrawtransaction(const JSONRPCRequest& request) } } - // parse hex string from parameter - CMutableTransaction tx; - bool try_witness = request.params[2].isNull() ? true : request.params[2].get_bool(); - bool try_no_witness = request.params[2].isNull() ? true : !request.params[2].get_bool(); - if (!DecodeHexTx(tx, request.params[0].get_str(), try_no_witness, try_witness)) { - throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed"); - } - if (tx.vout.size() == 0) throw JSONRPCError(RPC_INVALID_PARAMETER, "TX must have at least one output"); - if (changePosition != -1 && (changePosition < 0 || (unsigned int)changePosition > tx.vout.size())) + if (change_position != -1 && (change_position < 0 || (unsigned int)change_position > tx.vout.size())) throw JSONRPCError(RPC_INVALID_PARAMETER, "changePosition out of bounds"); for (unsigned int idx = 0; idx < subtractFeeFromOutputs.size(); idx++) { @@ -3619,17 +3541,98 @@ static UniValue fundrawtransaction(const JSONRPCRequest& request) setSubtractFeeFromOutputs.insert(pos); } - CAmount nFeeOut; std::string strFailReason; - if (!pwallet->FundTransaction(tx, nFeeOut, changePosition, strFailReason, lockUnspents, setSubtractFeeFromOutputs, coinControl)) { + if (!pwallet->FundTransaction(tx, fee_out, change_position, strFailReason, lockUnspents, setSubtractFeeFromOutputs, coinControl)) { throw JSONRPCError(RPC_WALLET_ERROR, strFailReason); } +} + +static UniValue fundrawtransaction(const JSONRPCRequest& request) +{ + std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request); + CWallet* const pwallet = wallet.get(); + + if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) { + return NullUniValue; + } + + if (request.fHelp || request.params.size() < 1 || request.params.size() > 3) + throw std::runtime_error( + "fundrawtransaction \"hexstring\" ( options iswitness )\n" + "\nAdd inputs to a transaction until it has enough in value to meet its out value.\n" + "This will not modify existing inputs, and will add at most one change output to the outputs.\n" + "No existing outputs will be modified unless \"subtractFeeFromOutputs\" is specified.\n" + "Note that inputs which were signed may need to be resigned after completion since in/outputs have been added.\n" + "The inputs added will not be signed, use signrawtransaction for that.\n" + "Note that all existing inputs must have their previous output transaction be in the wallet.\n" + "Note that all inputs selected must be of standard form and P2SH scripts must be\n" + "in the wallet using importaddress or addmultisigaddress (to calculate fees).\n" + "You can see whether this is the case by checking the \"solvable\" field in the listunspent output.\n" + "Only pay-to-pubkey, multisig, and P2SH versions thereof are currently supported for watch-only\n" + "\nArguments:\n" + "1. \"hexstring\" (string, required) The hex string of the raw transaction\n" + "2. options (object, optional)\n" + " {\n" + " \"changeAddress\" (string, optional, default pool address) The bitcoin address to receive the change\n" + " \"changePosition\" (numeric, optional, default random) The index of the change output\n" + " \"change_type\" (string, optional) The output type to use. Only valid if changeAddress is not specified. Options are \"legacy\", \"p2sh-segwit\", and \"bech32\". Default is set by -changetype.\n" + " \"includeWatching\" (boolean, optional, default false) Also select inputs which are watch only\n" + " \"lockUnspents\" (boolean, optional, default false) Lock selected unspent outputs\n" + " \"feeRate\" (numeric, optional, default not set: makes wallet determine the fee) Set a specific fee rate in " + CURRENCY_UNIT + "/kB\n" + " \"subtractFeeFromOutputs\" (array, optional) A json array of integers.\n" + " The fee will be equally deducted from the amount of each specified output.\n" + " The outputs are specified by their zero-based index, before any change output is added.\n" + " Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n" + " If no outputs are specified here, the sender pays the fee.\n" + " [vout_index,...]\n" + " \"replaceable\" (boolean, optional) Marks this transaction as BIP125 replaceable.\n" + " Allows this transaction to be replaced by a transaction with higher fees\n" + " \"conf_target\" (numeric, optional) Confirmation target (in blocks)\n" + " \"estimate_mode\" (string, optional, default=UNSET) The fee estimate mode, must be one of:\n" + " \"UNSET\"\n" + " \"ECONOMICAL\"\n" + " \"CONSERVATIVE\"\n" + " }\n" + " for backward compatibility: passing in a true instead of an object will result in {\"includeWatching\":true}\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\n" + + "\nResult:\n" + "{\n" + " \"hex\": \"value\", (string) The resulting raw transaction (hex-encoded string)\n" + " \"fee\": n, (numeric) Fee in " + CURRENCY_UNIT + " the resulting transaction pays\n" + " \"changepos\": n (numeric) The position of the added change output, or -1\n" + "}\n" + "\nExamples:\n" + "\nCreate a transaction with no inputs\n" + + HelpExampleCli("createrawtransaction", "\"[]\" \"{\\\"myaddress\\\":0.01}\"") + + "\nAdd sufficient unsigned inputs to meet the output value\n" + + HelpExampleCli("fundrawtransaction", "\"rawtransactionhex\"") + + "\nSign the transaction\n" + + HelpExampleCli("signrawtransaction", "\"fundedtransactionhex\"") + + "\nSend the transaction\n" + + HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"") + ); + + RPCTypeCheck(request.params, {UniValue::VSTR, UniValueType(), UniValue::VBOOL}); + + // parse hex string from parameter + CMutableTransaction tx; + bool try_witness = request.params[2].isNull() ? true : request.params[2].get_bool(); + bool try_no_witness = request.params[2].isNull() ? true : !request.params[2].get_bool(); + if (!DecodeHexTx(tx, request.params[0].get_str(), try_no_witness, try_witness)) { + throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed"); + } + + CAmount fee; + int change_position; + FundTransaction(pwallet, tx, fee, change_position, request.params[1]); UniValue result(UniValue::VOBJ); result.pushKV("hex", EncodeHexTx(tx)); - result.pushKV("changepos", changePosition); - result.pushKV("fee", ValueFromAmount(nFeeOut)); + result.pushKV("fee", ValueFromAmount(fee)); + result.pushKV("changepos", change_position); return result; } @@ -4400,6 +4403,332 @@ UniValue sethdseed(const JSONRPCRequest& request) return NullUniValue; } +bool ParseHDKeypath(std::string keypath_str, std::vector<uint32_t>& keypath) +{ + std::stringstream ss(keypath_str); + std::string item; + bool first = true; + while (std::getline(ss, item, '/')) { + if (item.compare("m") == 0) { + if (first) { + first = false; + continue; + } + return false; + } + // Finds whether it is hardened + uint32_t path = 0; + size_t pos = item.find("'"); + if (pos != std::string::npos) { + // The hardened tick can only be in the last index of the string + if (pos != item.size() - 1) { + return false; + } + path |= 0x80000000; + item = item.substr(0, item.size() - 1); // Drop the last character which is the hardened tick + } + + // Ensure this is only numbers + if (item.find_first_not_of( "0123456789" ) != std::string::npos) { + return false; + } + uint32_t number; + ParseUInt32(item, &number); + path |= number; + + keypath.push_back(path); + first = false; + } + return true; +} + +void AddKeypathToMap(const CWallet* pwallet, const CKeyID& keyID, std::map<CPubKey, std::vector<uint32_t>>& hd_keypaths) +{ + CPubKey vchPubKey; + if (!pwallet->GetPubKey(keyID, vchPubKey)) { + return; + } + CKeyMetadata meta; + auto it = pwallet->mapKeyMetadata.find(keyID); + if (it != pwallet->mapKeyMetadata.end()) { + meta = it->second; + } + std::vector<uint32_t> keypath; + if (!meta.hdKeypath.empty()) { + if (!ParseHDKeypath(meta.hdKeypath, keypath)) { + throw JSONRPCError(RPC_INTERNAL_ERROR, "Internal keypath is broken"); + } + // Get the proper master key id + CKey key; + pwallet->GetKey(meta.hd_seed_id, key); + CExtKey masterKey; + masterKey.SetSeed(key.begin(), key.size()); + // Add to map + keypath.insert(keypath.begin(), ReadLE32(masterKey.key.GetPubKey().GetID().begin())); + } else { // Single pubkeys get the master fingerprint of themselves + keypath.insert(keypath.begin(), ReadLE32(vchPubKey.GetID().begin())); + } + hd_keypaths.emplace(vchPubKey, keypath); +} + +bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, const CTransaction* txConst, int sighash_type, bool sign, bool bip32derivs) +{ + LOCK(pwallet->cs_wallet); + // Get all of the previous transactions + bool complete = true; + for (unsigned int i = 0; i < txConst->vin.size(); ++i) { + const CTxIn& txin = txConst->vin[i]; + PSBTInput& input = psbtx.inputs.at(i); + + // If we don't know about this input, skip it and let someone else deal with it + const uint256& txhash = txin.prevout.hash; + const auto& it = pwallet->mapWallet.find(txhash); + if (it != pwallet->mapWallet.end()) { + const CWalletTx& wtx = it->second; + CTxOut utxo = wtx.tx->vout[txin.prevout.n]; + input.non_witness_utxo = wtx.tx; + input.witness_utxo = utxo; + } + + // Get the Sighash type + if (sign && input.sighash_type > 0 && input.sighash_type != sighash_type) { + throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Specified Sighash and sighash in PSBT do not match."); + } + + SignatureData sigdata; + if (sign) { + complete &= SignPSBTInput(*pwallet, *psbtx.tx, input, sigdata, i, sighash_type); + } else { + complete &= SignPSBTInput(PublicOnlySigningProvider(pwallet), *psbtx.tx, input, sigdata, i, sighash_type); + } + + // Drop the unnecessary UTXO + if (sigdata.witness) { + input.non_witness_utxo = nullptr; + } else { + input.witness_utxo.SetNull(); + } + + // Get public key paths + if (bip32derivs) { + for (const auto& pubkey_it : sigdata.misc_pubkeys) { + AddKeypathToMap(pwallet, pubkey_it.first, input.hd_keypaths); + } + } + } + + // Fill in the bip32 keypaths and redeemscripts for the outputs so that hardware wallets can identify change + for (unsigned int i = 0; i < txConst->vout.size(); ++i) { + const CTxOut& out = txConst->vout.at(i); + PSBTOutput& psbt_out = psbtx.outputs.at(i); + + // Dummy tx so we can use ProduceSignature to get stuff out + CMutableTransaction dummy_tx; + dummy_tx.vin.push_back(CTxIn()); + dummy_tx.vout.push_back(CTxOut()); + + // Fill a SignatureData with output info + SignatureData sigdata; + psbt_out.FillSignatureData(sigdata); + + MutableTransactionSignatureCreator creator(psbtx.tx.get_ptr(), 0, out.nValue, 1); + ProduceSignature(*pwallet, creator, out.scriptPubKey, sigdata); + psbt_out.FromSignatureData(sigdata); + + // Get public key paths + if (bip32derivs) { + for (const auto& pubkey_it : sigdata.misc_pubkeys) { + AddKeypathToMap(pwallet, pubkey_it.first, psbt_out.hd_keypaths); + } + } + } + return complete; +} + +UniValue walletprocesspsbt(const JSONRPCRequest& request) +{ + std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request); + CWallet* const pwallet = wallet.get(); + + if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) { + return NullUniValue; + } + + if (request.fHelp || request.params.size() < 1 || request.params.size() > 4) + throw std::runtime_error( + "walletprocesspsbt \"psbt\" ( sign \"sighashtype\" bip32derivs )\n" + "\nUpdate a PSBT with input information from our wallet and then sign inputs\n" + "that we can sign for.\n" + + HelpRequiringPassphrase(pwallet) + "\n" + + "\nArguments:\n" + "1. \"psbt\" (string, required) The transaction base64 string\n" + "2. sign (boolean, optional, default=true) Also sign the transaction when updating\n" + "3. \"sighashtype\" (string, optional, default=ALL) The signature hash type to sign with if not specified by the PSBT. Must be one of\n" + " \"ALL\"\n" + " \"NONE\"\n" + " \"SINGLE\"\n" + " \"ALL|ANYONECANPAY\"\n" + " \"NONE|ANYONECANPAY\"\n" + " \"SINGLE|ANYONECANPAY\"\n" + "4. bip32derivs (boolean, optiona, default=false) If true, includes the BIP 32 derivation paths for public keys if we know them\n" + + "\nResult:\n" + "{\n" + " \"psbt\" : \"value\", (string) The base64-encoded partially signed transaction\n" + " \"complete\" : true|false, (boolean) If the transaction has a complete set of signatures\n" + " ]\n" + "}\n" + + "\nExamples:\n" + + HelpExampleCli("walletprocesspsbt", "\"psbt\"") + ); + + RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VBOOL, UniValue::VSTR}); + + // Unserialize the transaction + 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 the sighash type + int nHashType = ParseSighashString(request.params[2]); + + // Use CTransaction for the constant parts of the + // transaction to avoid rehashing. + const CTransaction txConst(*psbtx.tx); + + // Fill transaction with our data and also sign + bool sign = request.params[1].isNull() ? true : request.params[1].get_bool(); + bool bip32derivs = request.params[3].isNull() ? false : request.params[3].get_bool(); + bool complete = FillPSBT(pwallet, psbtx, &txConst, nHashType, sign, bip32derivs); + + UniValue result(UniValue::VOBJ); + CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); + ssTx << psbtx; + result.push_back(Pair("psbt", EncodeBase64((unsigned char*)ssTx.data(), ssTx.size()))); + result.push_back(Pair("complete", complete)); + + return result; +} + +UniValue walletcreatefundedpsbt(const JSONRPCRequest& request) +{ + std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request); + CWallet* const pwallet = wallet.get(); + + if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) { + return NullUniValue; + } + + if (request.fHelp || request.params.size() < 2 || request.params.size() > 6) + throw std::runtime_error( + "walletcreatefundedpsbt [{\"txid\":\"id\",\"vout\":n},...] [{\"address\":amount},{\"data\":\"hex\"},...] ( locktime ) ( replaceable ) ( options bip32derivs )\n" + "\nCreates and funds a transaction in the Partially Signed Transaction format. Inputs will be added if supplied inputs are not enough\n" + "Implements the Creator and Updater roles.\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" + "5. options (object, optional)\n" + " {\n" + " \"changeAddress\" (string, optional, default pool address) The bitcoin address to receive the change\n" + " \"changePosition\" (numeric, optional, default random) The index of the change output\n" + " \"change_type\" (string, optional) The output type to use. Only valid if changeAddress is not specified. Options are \"legacy\", \"p2sh-segwit\", and \"bech32\". Default is set by -changetype.\n" + " \"includeWatching\" (boolean, optional, default false) Also select inputs which are watch only\n" + " \"lockUnspents\" (boolean, optional, default false) Lock selected unspent outputs\n" + " \"feeRate\" (numeric, optional, default not set: makes wallet determine the fee) Set a specific fee rate in " + CURRENCY_UNIT + "/kB\n" + " \"subtractFeeFromOutputs\" (array, optional) A json array of integers.\n" + " The fee will be equally deducted from the amount of each specified output.\n" + " The outputs are specified by their zero-based index, before any change output is added.\n" + " Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n" + " If no outputs are specified here, the sender pays the fee.\n" + " [vout_index,...]\n" + " \"replaceable\" (boolean, optional) Marks this transaction as BIP125 replaceable.\n" + " Allows this transaction to be replaced by a transaction with higher fees\n" + " \"conf_target\" (numeric, optional) Confirmation target (in blocks)\n" + " \"estimate_mode\" (string, optional, default=UNSET) The fee estimate mode, must be one of:\n" + " \"UNSET\"\n" + " \"ECONOMICAL\"\n" + " \"CONSERVATIVE\"\n" + " }\n" + "6. bip32derivs (boolean, optiona, default=false) If true, includes the BIP 32 derivation paths for public keys if we know them\n" + "\nResult:\n" + "{\n" + " \"psbt\": \"value\", (string) The resulting raw transaction (base64-encoded string)\n" + " \"fee\": n, (numeric) Fee in " + CURRENCY_UNIT + " the resulting transaction pays\n" + " \"changepos\": n (numeric) The position of the added change output, or -1\n" + "}\n" + "\nExamples:\n" + "\nCreate a transaction with no inputs\n" + + HelpExampleCli("walletcreatefundedpsbt", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"[{\\\"data\\\":\\\"00010203\\\"}]\"") + ); + + RPCTypeCheck(request.params, { + UniValue::VARR, + UniValueType(), // ARR or OBJ, checked later + UniValue::VNUM, + UniValue::VBOOL, + UniValue::VOBJ + }, true + ); + + CAmount fee; + int change_position; + CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], request.params[3]); + FundTransaction(pwallet, rawTx, fee, change_position, request.params[4]); + + // 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()); + } + + // Use CTransaction for the constant parts of the + // transaction to avoid rehashing. + const CTransaction txConst(*psbtx.tx); + + // Fill transaction with out data but don't sign + bool bip32derivs = request.params[5].isNull() ? false : request.params[5].get_bool(); + FillPSBT(pwallet, psbtx, &txConst, 1, false, bip32derivs); + + // Serialize the PSBT + CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); + ssTx << psbtx; + + UniValue result(UniValue::VOBJ); + result.pushKV("psbt", EncodeBase64((unsigned char*)ssTx.data(), ssTx.size())); + result.pushKV("fee", ValueFromAmount(fee)); + result.pushKV("changepos", change_position); + return result; +} + extern UniValue abortrescan(const JSONRPCRequest& request); // in rpcdump.cpp extern UniValue dumpprivkey(const JSONRPCRequest& request); // in rpcdump.cpp extern UniValue importprivkey(const JSONRPCRequest& request); @@ -4416,6 +4745,8 @@ static const CRPCCommand commands[] = { // category name actor (function) argNames // --------------------- ------------------------ ----------------------- ---------- { "rawtransactions", "fundrawtransaction", &fundrawtransaction, {"hexstring","options","iswitness"} }, + { "wallet", "walletprocesspsbt", &walletprocesspsbt, {"psbt","sign","sighashtype","bip32derivs"} }, + { "wallet", "walletcreatefundedpsbt", &walletcreatefundedpsbt, {"inputs","outputs","locktime","replaceable","options","bip32derivs"} }, { "hidden", "resendwallettransactions", &resendwallettransactions, {} }, { "wallet", "abandontransaction", &abandontransaction, {"txid"} }, { "wallet", "abortrescan", &abortrescan, {} }, diff --git a/src/wallet/rpcwallet.h b/src/wallet/rpcwallet.h index b841f3e424..64556b5824 100644 --- a/src/wallet/rpcwallet.h +++ b/src/wallet/rpcwallet.h @@ -11,6 +11,8 @@ class CRPCTable; class CWallet; class JSONRPCRequest; class UniValue; +struct PartiallySignedTransaction; +class CTransaction; void RegisterWalletRPCCommands(CRPCTable &t); @@ -28,4 +30,5 @@ bool EnsureWalletIsAvailable(CWallet *, bool avoidException); UniValue getaddressinfo(const JSONRPCRequest& request); UniValue signrawtransactionwithwallet(const JSONRPCRequest& request); +bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, const CTransaction* txConst, int sighash_type = 1, bool sign = true, bool bip32derivs = false); #endif //BITCOIN_WALLET_RPCWALLET_H diff --git a/src/wallet/test/psbt_wallet_tests.cpp b/src/wallet/test/psbt_wallet_tests.cpp new file mode 100644 index 0000000000..a74ca85349 --- /dev/null +++ b/src/wallet/test/psbt_wallet_tests.cpp @@ -0,0 +1,74 @@ +// Copyright (c) 2017 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 <key_io.h> +#include <script/sign.h> +#include <utilstrencodings.h> +#include <wallet/rpcwallet.h> +#include <wallet/wallet.h> +#include <univalue.h> + +#include <boost/test/unit_test.hpp> +#include <test/test_bitcoin.h> +#include <wallet/test/wallet_test_fixture.h> + +BOOST_FIXTURE_TEST_SUITE(psbt_wallet_tests, WalletTestingSetup) + +BOOST_AUTO_TEST_CASE(psbt_updater_test) +{ + // Create prevtxs and add to wallet + CDataStream s_prev_tx1(ParseHex("0200000000010158e87a21b56daf0c23be8e7070456c336f7cbaa5c8757924f545887bb2abdd7501000000171600145f275f436b09a8cc9a2eb2a2f528485c68a56323feffffff02d8231f1b0100000017a914aed962d6654f9a2b36608eb9d64d2b260db4f1118700c2eb0b0000000017a914b7f5faf40e3d40a5a459b1db3535f2b72fa921e88702483045022100a22edcc6e5bc511af4cc4ae0de0fcd75c7e04d8c1c3a8aa9d820ed4b967384ec02200642963597b9b1bc22c75e9f3e117284a962188bf5e8a74c895089046a20ad770121035509a48eb623e10aace8bfd0212fdb8a8e5af3c94b0b133b95e114cab89e4f7965000000"), SER_NETWORK, PROTOCOL_VERSION); + CTransactionRef prev_tx1; + s_prev_tx1 >> prev_tx1; + CWalletTx prev_wtx1(&m_wallet, prev_tx1); + m_wallet.mapWallet.emplace(prev_wtx1.GetHash(), std::move(prev_wtx1)); + + CDataStream s_prev_tx2(ParseHex("0200000001aad73931018bd25f84ae400b68848be09db706eac2ac18298babee71ab656f8b0000000048473044022058f6fc7c6a33e1b31548d481c826c015bd30135aad42cd67790dab66d2ad243b02204a1ced2604c6735b6393e5b41691dd78b00f0c5942fb9f751856faa938157dba01feffffff0280f0fa020000000017a9140fb9463421696b82c833af241c78c17ddbde493487d0f20a270100000017a91429ca74f8a08f81999428185c97b5d852e4063f618765000000"), SER_NETWORK, PROTOCOL_VERSION); + CTransactionRef prev_tx2; + s_prev_tx2 >> prev_tx2; + CWalletTx prev_wtx2(&m_wallet, prev_tx2); + m_wallet.mapWallet.emplace(prev_wtx2.GetHash(), std::move(prev_wtx2)); + + // Add scripts + CScript rs1; + CDataStream s_rs1(ParseHex("475221029583bf39ae0a609747ad199addd634fa6108559d6c5cd39b4c2183f1ab96e07f2102dab61ff49a14db6a7d02b0cd1fbb78fc4b18312b5b4e54dae4dba2fbfef536d752ae"), SER_NETWORK, PROTOCOL_VERSION); + s_rs1 >> rs1; + m_wallet.AddCScript(rs1); + + CScript rs2; + CDataStream s_rs2(ParseHex("2200208c2353173743b595dfb4a07b72ba8e42e3797da74e87fe7d9d7497e3b2028903"), SER_NETWORK, PROTOCOL_VERSION); + s_rs2 >> rs2; + m_wallet.AddCScript(rs2); + + CScript ws1; + CDataStream s_ws1(ParseHex("47522103089dc10c7ac6db54f91329af617333db388cead0c231f723379d1b99030b02dc21023add904f3d6dcf59ddb906b0dee23529b7ffb9ed50e5e86151926860221f0e7352ae"), SER_NETWORK, PROTOCOL_VERSION); + s_ws1 >> ws1; + m_wallet.AddCScript(ws1); + + // Add hd seed + CKey key = DecodeSecret("5KSSJQ7UNfFGwVgpCZDSHm5rVNhMFcFtvWM3zQ8mW4qNDEN7LFd"); // Mainnet and uncompressed form of cUkG8i1RFfWGWy5ziR11zJ5V4U4W3viSFCfyJmZnvQaUsd1xuF3T + CPubKey master_pub_key = m_wallet.DeriveNewSeed(key); + m_wallet.SetHDSeed(master_pub_key); + m_wallet.NewKeyPool(); + + // Call FillPSBT + PartiallySignedTransaction psbtx; + CDataStream ssData(ParseHex("70736274ff01009a020000000258e87a21b56daf0c23be8e7070456c336f7cbaa5c8757924f545887bb2abdd750000000000ffffffff838d0427d0ec650a68aa46bb0b098aea4422c071b2ca78352a077959d07cea1d0100000000ffffffff0270aaf00800000000160014d85c2b71d0060b09c9886aeb815e50991dda124d00e1f5050000000016001400aea9a2e5f0f876a588df5546e8742d1d87008f000000000000000000"), SER_NETWORK, PROTOCOL_VERSION); + ssData >> psbtx; + + // Use CTransaction for the constant parts of the + // transaction to avoid rehashing. + const CTransaction txConst(*psbtx.tx); + + // Fill transaction with our data + FillPSBT(&m_wallet, psbtx, &txConst, 1, false, true); + + // Get the final tx + CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); + ssTx << psbtx; + std::string final_hex = HexStr(ssTx.begin(), ssTx.end()); + BOOST_CHECK_EQUAL(final_hex, "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"); +} + +BOOST_AUTO_TEST_SUITE_END() |