diff options
Diffstat (limited to 'src/rpc/rawtransaction.cpp')
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 183 |
1 files changed, 115 insertions, 68 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 7dd8abc193..8d9c207011 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -11,6 +11,7 @@ #include <core_io.h> #include <index/txindex.h> #include <init.h> +#include <interfaces/chain.h> #include <key_io.h> #include <keystore.h> #include <merkleblock.h> @@ -28,6 +29,7 @@ #include <script/standard.h> #include <uint256.h> #include <util/bip32.h> +#include <util/moneystr.h> #include <util/strencodings.h> #include <validation.h> #include <validationinterface.h> @@ -38,6 +40,11 @@ #include <univalue.h> +/** High fee for sendrawtransaction and testmempoolaccept. + * By default, transaction with a fee higher than this will be rejected by the + * RPCs. This can be overriden with the maxfeerate argument. + */ +constexpr static CAmount DEFAULT_MAX_RAW_TX_FEE{COIN / 10}; static void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry) { @@ -608,33 +615,54 @@ static UniValue decoderawtransaction(const JSONRPCRequest& request) return result; } +static std::string GetAllOutputTypes() +{ + std::string ret; + for (int i = TX_NONSTANDARD; i <= TX_WITNESS_UNKNOWN; ++i) { + if (i != TX_NONSTANDARD) ret += ", "; + ret += GetTxnOutputType(static_cast<txnouttype>(i)); + } + return ret; +} + static UniValue decodescript(const JSONRPCRequest& request) { - if (request.fHelp || request.params.size() != 1) - throw std::runtime_error( - RPCHelpMan{"decodescript", + const RPCHelpMan help{"decodescript", "\nDecode a hex-encoded script.\n", { {"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "the hex-encoded script"}, }, RPCResult{ "{\n" - " \"asm\":\"asm\", (string) Script public key\n" - " \"hex\":\"hex\", (string) hex-encoded public key\n" - " \"type\":\"type\", (string) The output type\n" - " \"reqSigs\": n, (numeric) The required signatures\n" - " \"addresses\": [ (json array of string)\n" - " \"address\" (string) bitcoin address\n" + " \"asm\":\"asm\", (string) Script public key\n" + " \"type\":\"type\", (string) The output type (e.g. "+GetAllOutputTypes()+")\n" + " \"reqSigs\": n, (numeric) The required signatures\n" + " \"addresses\": [ (json array of string)\n" + " \"address\" (string) bitcoin address\n" " ,...\n" " ],\n" - " \"p2sh\",\"address\" (string) address of P2SH script wrapping this redeem script (not returned if the script is already a P2SH).\n" + " \"p2sh\":\"str\" (string) address of P2SH script wrapping this redeem script (not returned if the script is already a P2SH).\n" + " \"segwit\": { (json object) Result of a witness script public key wrapping this redeem script (not returned if the script is a P2SH or witness).\n" + " \"asm\":\"str\", (string) String representation of the script public key\n" + " \"hex\":\"hexstr\", (string) Hex string of the script public key\n" + " \"type\":\"str\", (string) The type of the script public key (e.g. witness_v0_keyhash or witness_v0_scripthash)\n" + " \"reqSigs\": n, (numeric) The required signatures (always 1)\n" + " \"addresses\": [ (json array of string) (always length 1)\n" + " \"address\" (string) segwit address\n" + " ,...\n" + " ],\n" + " \"p2sh-segwit\":\"str\" (string) address of the P2SH script wrapping this witness redeem script.\n" "}\n" }, RPCExamples{ HelpExampleCli("decodescript", "\"hexstring\"") + HelpExampleRpc("decodescript", "\"hexstring\"") }, - }.ToString()); + }; + + if (request.fHelp || !help.IsValidNumArgs(request.params.size())) { + throw std::runtime_error(help.ToString()); + } RPCTypeCheck(request.params, {UniValue::VSTR}); @@ -646,7 +674,7 @@ static UniValue decodescript(const JSONRPCRequest& request) } else { // Empty scripts are valid } - ScriptPubKeyToUniv(script, r, false); + ScriptPubKeyToUniv(script, r, /* fIncludeHex */ false); UniValue type; type = find_value(r, "type"); @@ -680,7 +708,7 @@ static UniValue decodescript(const JSONRPCRequest& request) // Newer segwit program versions should be considered when then become available. segwitScr = GetScriptForDestination(WitnessV0ScriptHash(script)); } - ScriptPubKeyToUniv(segwitScr, sr, true); + ScriptPubKeyToUniv(segwitScr, sr, /* fIncludeHex */ true); sr.pushKV("p2sh-segwit", EncodeDestination(CScriptID(segwitScr))); r.pushKV("segwit", sr); } @@ -790,23 +818,20 @@ static UniValue combinerawtransaction(const JSONRPCRequest& request) return EncodeHexTx(CTransaction(mergedTx)); } +// TODO(https://github.com/bitcoin/bitcoin/pull/10973#discussion_r267084237): +// This function is called from both wallet and node rpcs +// (signrawtransactionwithwallet and signrawtransactionwithkey). It should be +// moved to a util file so wallet code doesn't need to link against node code. +// Also the dependency on interfaces::Chain should be removed, so +// signrawtransactionwithkey doesn't need access to a Chain instance. UniValue SignTransaction(interfaces::Chain& chain, CMutableTransaction& mtx, const UniValue& prevTxsUnival, CBasicKeyStore *keystore, bool is_temp_keystore, const UniValue& hashType) { // Fetch previous transactions (inputs): - CCoinsView viewDummy; - CCoinsViewCache view(&viewDummy); - { - LOCK2(cs_main, mempool.cs); - CCoinsViewCache &viewChain = *pcoinsTip; - CCoinsViewMemPool viewMempool(&viewChain, mempool); - view.SetBackend(viewMempool); // temporarily switch cache backend to db+mempool view - - for (const CTxIn& txin : mtx.vin) { - view.AccessCoin(txin.prevout); // Load entries from viewChain into view; can fail. - } - - view.SetBackend(viewDummy); // switch back to avoid locking mempool for too long + std::map<COutPoint, Coin> coins; + for (const CTxIn& txin : mtx.vin) { + coins[txin.prevout]; // Create empty map entry keyed by prevout. } + chain.findCoins(coins); // Add previous txouts given in the RPC call: if (!prevTxsUnival.isNull()) { @@ -838,10 +863,10 @@ UniValue SignTransaction(interfaces::Chain& chain, CMutableTransaction& mtx, con CScript scriptPubKey(pkData.begin(), pkData.end()); { - const Coin& coin = view.AccessCoin(out); - if (!coin.IsSpent() && coin.out.scriptPubKey != scriptPubKey) { + auto coin = coins.find(out); + if (coin != coins.end() && !coin->second.IsSpent() && coin->second.out.scriptPubKey != scriptPubKey) { std::string err("Previous output scriptPubKey mismatch:\n"); - err = err + ScriptToAsmStr(coin.out.scriptPubKey) + "\nvs:\n"+ + err = err + ScriptToAsmStr(coin->second.out.scriptPubKey) + "\nvs:\n"+ ScriptToAsmStr(scriptPubKey); throw JSONRPCError(RPC_DESERIALIZATION_ERROR, err); } @@ -852,7 +877,7 @@ UniValue SignTransaction(interfaces::Chain& chain, CMutableTransaction& mtx, con newcoin.out.nValue = AmountFromValue(find_value(prevOut, "amount")); } newcoin.nHeight = 1; - view.AddCoin(out, std::move(newcoin), true); + coins[out] = std::move(newcoin); } // if redeemScript and private keys were given, add redeemScript to the keystore so it can be signed @@ -896,15 +921,15 @@ UniValue SignTransaction(interfaces::Chain& chain, CMutableTransaction& mtx, con // Sign what we can: for (unsigned int i = 0; i < mtx.vin.size(); i++) { CTxIn& txin = mtx.vin[i]; - const Coin& coin = view.AccessCoin(txin.prevout); - if (coin.IsSpent()) { + auto coin = coins.find(txin.prevout); + if (coin == coins.end() || coin->second.IsSpent()) { TxInErrorToJSON(txin, vErrors, "Input not found or already spent"); continue; } - const CScript& prevPubKey = coin.out.scriptPubKey; - const CAmount& amount = coin.out.nValue; + const CScript& prevPubKey = coin->second.out.scriptPubKey; + const CAmount& amount = coin->second.out.nValue; - SignatureData sigdata = DataFromTransaction(mtx, i, coin.out); + SignatureData sigdata = DataFromTransaction(mtx, i, coin->second.out); // Only sign SIGHASH_SINGLE if there's a corresponding output: if (!fHashSingle || (i < mtx.vout.size())) { ProduceSignature(*keystore, MutableTransactionSignatureCreator(&mtx, i, amount, nHashType), prevPubKey, sigdata); @@ -914,7 +939,7 @@ UniValue SignTransaction(interfaces::Chain& chain, CMutableTransaction& mtx, con // amount must be specified for valid segwit signature if (amount == MAX_MONEY && !txin.scriptWitness.IsNull()) { - throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing amount for %s", coin.out.ToString())); + throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing amount for %s", coin->second.out.ToString())); } ScriptError serror = SCRIPT_ERR_OK; @@ -965,7 +990,7 @@ static UniValue signrawtransactionwithkey(const JSONRPCRequest& request) {"scriptPubKey", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "script key"}, {"redeemScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2SH) redeem script"}, {"witnessScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2WSH or P2SH-P2WSH) witness script"}, - {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The amount spent"}, + {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::OMITTED, "(required for Segwit inputs) the amount spent"}, }, }, }, @@ -1022,24 +1047,14 @@ static UniValue signrawtransactionwithkey(const JSONRPCRequest& request) return SignTransaction(*g_rpc_interfaces->chain, mtx, request.params[2], &keystore, true, request.params[3]); } -UniValue signrawtransaction(const JSONRPCRequest& request) -{ - // This method should be removed entirely in V0.19, along with the entries in the - // CRPCCommand table and rpc/client.cpp. - throw JSONRPCError(RPC_METHOD_DEPRECATED, "signrawtransaction was removed in v0.18.\n" - "Clients should transition to using signrawtransactionwithkey and signrawtransactionwithwallet"); -} - static UniValue sendrawtransaction(const JSONRPCRequest& request) { - if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) - throw std::runtime_error( - RPCHelpMan{"sendrawtransaction", + const RPCHelpMan help{"sendrawtransaction", "\nSubmits raw transaction (serialized, hex-encoded) to local node and network.\n" "\nAlso see createrawtransaction and signrawtransactionwithkey calls.\n", { {"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex string of the raw transaction"}, - {"allowhighfees", RPCArg::Type::BOOL, /* default */ "false", "Allow high fees"}, + {"maxfeerate", RPCArg::Type::AMOUNT, /* default */ FormatMoney(DEFAULT_MAX_RAW_TX_FEE), "Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT + "/kB\n"}, }, RPCResult{ "\"hex\" (string) The transaction hash in hex\n" @@ -1054,9 +1069,16 @@ static UniValue sendrawtransaction(const JSONRPCRequest& request) "\nAs a JSON-RPC call\n" + HelpExampleRpc("sendrawtransaction", "\"signedhex\"") }, - }.ToString()); + }; - RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VBOOL}); + if (request.fHelp || !help.IsValidNumArgs(request.params.size())) { + throw std::runtime_error(help.ToString()); + } + + RPCTypeCheck(request.params, { + UniValue::VSTR, + UniValueType(), // NUM or BOOL, checked later + }); // parse hex string from parameter CMutableTransaction mtx; @@ -1064,12 +1086,24 @@ static UniValue sendrawtransaction(const JSONRPCRequest& request) throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed"); CTransactionRef tx(MakeTransactionRef(std::move(mtx))); - bool allowhighfees = false; - if (!request.params[1].isNull()) allowhighfees = request.params[1].get_bool(); - const CAmount highfee{allowhighfees ? 0 : ::maxTxFee}; + CAmount max_raw_tx_fee = DEFAULT_MAX_RAW_TX_FEE; + // TODO: temporary migration code for old clients. Remove in v0.20 + if (request.params[1].isBool()) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "Second argument must be numeric (maxfeerate) and no longer supports a boolean. To allow a transaction with high fees, set maxfeerate to 0."); + } else if (request.params[1].isNum()) { + size_t weight = GetTransactionWeight(*tx); + CFeeRate fr(AmountFromValue(request.params[1])); + // the +3/4 part rounds the value up, and is the same formula used when + // calculating the fee for a transaction + // (see GetVirtualTransactionSize) + max_raw_tx_fee = fr.GetFee((weight+3)/4); + } else if (!request.params[1].isNull()) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "second argument (maxfeerate) must be numeric"); + } + uint256 txid; std::string err_string; - const TransactionError err = BroadcastTransaction(tx, txid, err_string, highfee); + const TransactionError err = BroadcastTransaction(tx, txid, err_string, max_raw_tx_fee); if (TransactionError::OK != err) { throw JSONRPCTransactionError(err, err_string); } @@ -1079,9 +1113,7 @@ static UniValue sendrawtransaction(const JSONRPCRequest& request) static UniValue testmempoolaccept(const JSONRPCRequest& request) { - if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) { - throw std::runtime_error( - RPCHelpMan{"testmempoolaccept", + const RPCHelpMan help{"testmempoolaccept", "\nReturns result of mempool acceptance tests indicating if raw transaction (serialized, hex-encoded) would be accepted by mempool.\n" "\nThis checks if the transaction violates the consensus or policy rules.\n" "\nSee sendrawtransaction call.\n", @@ -1092,7 +1124,7 @@ static UniValue testmempoolaccept(const JSONRPCRequest& request) {"rawtx", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, ""}, }, }, - {"allowhighfees", RPCArg::Type::BOOL, /* default */ "false", "Allow high fees"}, + {"maxfeerate", RPCArg::Type::AMOUNT, /* default */ FormatMoney(DEFAULT_MAX_RAW_TX_FEE), "Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT + "/kB\n"}, }, RPCResult{ "[ (array) The result of the mempool acceptance test for each raw transaction in the input array.\n" @@ -1114,10 +1146,17 @@ static UniValue testmempoolaccept(const JSONRPCRequest& request) "\nAs a JSON-RPC call\n" + HelpExampleRpc("testmempoolaccept", "[\"signedhex\"]") }, - }.ToString()); + }; + + if (request.fHelp || !help.IsValidNumArgs(request.params.size())) { + throw std::runtime_error(help.ToString()); } - RPCTypeCheck(request.params, {UniValue::VARR, UniValue::VBOOL}); + RPCTypeCheck(request.params, { + UniValue::VARR, + UniValueType(), // NUM or BOOL, checked later + }); + if (request.params[0].get_array().size() != 1) { throw JSONRPCError(RPC_INVALID_PARAMETER, "Array must contain exactly one raw transaction for now"); } @@ -1129,9 +1168,19 @@ static UniValue testmempoolaccept(const JSONRPCRequest& request) CTransactionRef tx(MakeTransactionRef(std::move(mtx))); const uint256& tx_hash = tx->GetHash(); - CAmount max_raw_tx_fee = ::maxTxFee; - if (!request.params[1].isNull() && request.params[1].get_bool()) { - max_raw_tx_fee = 0; + CAmount max_raw_tx_fee = DEFAULT_MAX_RAW_TX_FEE; + // TODO: temporary migration code for old clients. Remove in v0.20 + if (request.params[1].isBool()) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "Second argument must be numeric (maxfeerate) and no longer supports a boolean. To allow a transaction with high fees, set maxfeerate to 0."); + } else if (request.params[1].isNum()) { + size_t weight = GetTransactionWeight(*tx); + CFeeRate fr(AmountFromValue(request.params[1])); + // the +3/4 part rounds the value up, and is the same formula used when + // calculating the fee for a transaction + // (see GetVirtualTransactionSize) + max_raw_tx_fee = fr.GetFee((weight+3)/4); + } else if (!request.params[1].isNull()) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "second argument (maxfeerate) must be numeric"); } UniValue result(UniValue::VARR); @@ -1500,7 +1549,6 @@ UniValue combinepsbt(const JSONRPCRequest& request) throw JSONRPCTransactionError(error); } - UniValue result(UniValue::VOBJ); CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); ssTx << merged_psbt; return EncodeBase64((unsigned char*)ssTx.data(), ssTx.size()); @@ -1956,11 +2004,10 @@ static const CRPCCommand commands[] = { "rawtransactions", "createrawtransaction", &createrawtransaction, {"inputs","outputs","locktime","replaceable"} }, { "rawtransactions", "decoderawtransaction", &decoderawtransaction, {"hexstring","iswitness"} }, { "rawtransactions", "decodescript", &decodescript, {"hexstring"} }, - { "rawtransactions", "sendrawtransaction", &sendrawtransaction, {"hexstring","allowhighfees"} }, + { "rawtransactions", "sendrawtransaction", &sendrawtransaction, {"hexstring","allowhighfees|maxfeerate"} }, { "rawtransactions", "combinerawtransaction", &combinerawtransaction, {"txs"} }, - { "hidden", "signrawtransaction", &signrawtransaction, {"hexstring","prevtxs","privkeys","sighashtype"} }, { "rawtransactions", "signrawtransactionwithkey", &signrawtransactionwithkey, {"hexstring","privkeys","prevtxs","sighashtype"} }, - { "rawtransactions", "testmempoolaccept", &testmempoolaccept, {"rawtxs","allowhighfees"} }, + { "rawtransactions", "testmempoolaccept", &testmempoolaccept, {"rawtxs","allowhighfees|maxfeerate"} }, { "rawtransactions", "decodepsbt", &decodepsbt, {"psbt"} }, { "rawtransactions", "combinepsbt", &combinepsbt, {"txs"} }, { "rawtransactions", "finalizepsbt", &finalizepsbt, {"psbt", "extract"} }, |