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Merge #18654: rpc: separate bumpfee's psbt creation function into psbtbumpfee

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79d6332e9e moveonly: Fix indentation in bumpfee RPC (Andrew Chow)
431071c28a Hide bumpfee's psbt creation behavior behind -deprecatedrpc (Andrew Chow)
4638224f64 Add psbtbumpfee RPC (Andrew Chow)

Pull request description:

  Adds a new RPC `psbtbumpfee` which always creates a psbt. `bumpfee` will then only be able to create and broadcast fee bumping transactions instead of changing its behavior based on `IsWalletSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)`.

  Split from #18627

ACKs for top commit:
  Sjors:
    re-utACK 79d6332
  meshcollider:
    utACK 79d6332e9e
  fjahr:
    Code review ACK 79d6332e9e

Tree-SHA512: 1c92c4b4461bb30e78be3ee73165f624398ef33996ce36043b61a8931be667030d0fca12fd0b30097b78c56e4e9092c69582b237cbdac51d56f6be23d8c0f1bb
This commit is contained in:
Samuel Dobson
2020-08-13 11:58:23 +12:00
parent 038a04eb80 79d6332e9e
commit 8a85377cd0
4 changed files with 109 additions and 51 deletions
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114
src/wallet/rpcwallet.cpp
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@@ -3222,59 +3222,73 @@ UniValue signrawtransactionwithwallet(const JSONRPCRequest& request)
static UniValue bumpfee(const JSONRPCRequest& request)
{
RPCHelpMan{"bumpfee",
"\nBumps the fee of an opt-in-RBF transaction T, replacing it with a new transaction B.\n"
"An opt-in RBF transaction with the given txid must be in the wallet.\n"
"The command will pay the additional fee by reducing change outputs or adding inputs when necessary. It may add a new change output if one does not already exist.\n"
"All inputs in the original transaction will be included in the replacement transaction.\n"
"The command will fail if the wallet or mempool contains a transaction that spends one of T's outputs.\n"
"By default, the new fee will be calculated automatically using estimatesmartfee.\n"
"The user can specify a confirmation target for estimatesmartfee.\n"
"Alternatively, the user can specify a fee_rate (" + CURRENCY_UNIT + " per kB) for the new transaction.\n"
"At a minimum, the new fee rate must be high enough to pay an additional new relay fee (incrementalfee\n"
"returned by getnetworkinfo) to enter the node's mempool.\n",
bool want_psbt = request.strMethod == "psbtbumpfee";
RPCHelpMan{request.strMethod,
"\nBumps the fee of an opt-in-RBF transaction T, replacing it with a new transaction B.\n"
+ std::string(want_psbt ? "Returns a PSBT instead of creating and signing a new transaction.\n" : "") +
"An opt-in RBF transaction with the given txid must be in the wallet.\n"
"The command will pay the additional fee by reducing change outputs or adding inputs when necessary. It may add a new change output if one does not already exist.\n"
"All inputs in the original transaction will be included in the replacement transaction.\n"
"The command will fail if the wallet or mempool contains a transaction that spends one of T's outputs.\n"
"By default, the new fee will be calculated automatically using estimatesmartfee.\n"
"The user can specify a confirmation target for estimatesmartfee.\n"
"Alternatively, the user can specify a fee_rate (" + CURRENCY_UNIT + " per kB) for the new transaction.\n"
"At a minimum, the new fee rate must be high enough to pay an additional new relay fee (incrementalfee\n"
"returned by getnetworkinfo) to enter the node's mempool.\n",
{
{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The txid to be bumped"},
{"options", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED_NAMED_ARG, "",
{
{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The txid to be bumped"},
{"options", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED_NAMED_ARG, "",
{
{"conf_target", RPCArg::Type::NUM, /* default */ "wallet default", "Confirmation target (in blocks)"},
{"fee_rate", RPCArg::Type::NUM, /* default */ "fall back to 'conf_target'", "fee rate (NOT total fee) to pay, in " + CURRENCY_UNIT + " per kB\n"
" Specify a fee rate instead of relying on the built-in fee estimator.\n"
"Must be at least 0.0001 " + CURRENCY_UNIT + " per kB higher than the current transaction fee rate.\n"},
{"replaceable", RPCArg::Type::BOOL, /* default */ "true", "Whether the new transaction should still be\n"
" marked bip-125 replaceable. If true, the sequence numbers in the transaction will\n"
" be left unchanged from the original. If false, any input sequence numbers in the\n"
" original transaction that were less than 0xfffffffe will be increased to 0xfffffffe\n"
" so the new transaction will not be explicitly bip-125 replaceable (though it may\n"
" still be replaceable in practice, for example if it has unconfirmed ancestors which\n"
" are replaceable)."},
{"estimate_mode", RPCArg::Type::STR, /* default */ "unset", std::string() + "The fee estimate mode, must be one of (case insensitive):\n"
" \"" + FeeModes("\"\n\"") + "\""},
},
"options"},
{"conf_target", RPCArg::Type::NUM, /* default */ "wallet default", "Confirmation target (in blocks)"},
{"fee_rate", RPCArg::Type::NUM, /* default */ "fall back to 'conf_target'", "fee rate (NOT total fee) to pay, in " + CURRENCY_UNIT + " per kB\n"
" Specify a fee rate instead of relying on the built-in fee estimator.\n"
"Must be at least 0.0001 " + CURRENCY_UNIT + " per kB higher than the current transaction fee rate.\n"},
{"replaceable", RPCArg::Type::BOOL, /* default */ "true", "Whether the new transaction should still be\n"
" marked bip-125 replaceable. If true, the sequence numbers in the transaction will\n"
" be left unchanged from the original. If false, any input sequence numbers in the\n"
" original transaction that were less than 0xfffffffe will be increased to 0xfffffffe\n"
" so the new transaction will not be explicitly bip-125 replaceable (though it may\n"
" still be replaceable in practice, for example if it has unconfirmed ancestors which\n"
" are replaceable)."},
{"estimate_mode", RPCArg::Type::STR, /* default */ "unset", std::string() + "The fee estimate mode, must be one of (case insensitive):\n"
" \"" + FeeModes("\"\n\"") + "\""},
},
RPCResult{
RPCResult::Type::OBJ, "", "", {
{RPCResult::Type::STR, "psbt", "The base64-encoded unsigned PSBT of the new transaction. Only returned when wallet private keys are disabled."},
{RPCResult::Type::STR_HEX, "txid", "The id of the new transaction. Only returned when wallet private keys are enabled."},
{RPCResult::Type::STR_AMOUNT, "origfee", "The fee of the replaced transaction."},
{RPCResult::Type::STR_AMOUNT, "fee", "The fee of the new transaction."},
{RPCResult::Type::ARR, "errors", "Errors encountered during processing (may be empty).",
{
{RPCResult::Type::STR, "", ""},
}},
}
},
RPCExamples{
"\nBump the fee, get the new transaction\'s txid\n" +
HelpExampleCli("bumpfee", "<txid>")
},
}.Check(request);
"options"},
},
RPCResult{
RPCResult::Type::OBJ, "", "", Cat(Cat<std::vector<RPCResult>>(
{
{RPCResult::Type::STR, "psbt", "The base64-encoded unsigned PSBT of the new transaction." + std::string(want_psbt ? "" : " Only returned when wallet private keys are disabled. (DEPRECATED)")},
},
want_psbt ? std::vector<RPCResult>{} : std::vector<RPCResult>{{RPCResult::Type::STR_HEX, "txid", "The id of the new transaction. Only returned when wallet private keys are enabled."}}
),
{
{RPCResult::Type::STR_AMOUNT, "origfee", "The fee of the replaced transaction."},
{RPCResult::Type::STR_AMOUNT, "fee", "The fee of the new transaction."},
{RPCResult::Type::ARR, "errors", "Errors encountered during processing (may be empty).",
{
{RPCResult::Type::STR, "", ""},
}},
})
},
RPCExamples{
"\nBump the fee, get the new transaction\'s" + std::string(want_psbt ? "psbt" : "txid") + "\n" +
HelpExampleCli(request.strMethod, "<txid>")
},
}.Check(request);
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
if (!wallet) return NullUniValue;
CWallet* const pwallet = wallet.get();
if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS) && !want_psbt) {
if (!pwallet->chain().rpcEnableDeprecated("bumpfee")) {
throw JSONRPCError(RPC_METHOD_DEPRECATED, "Using bumpfee with wallets that have private keys disabled is deprecated. Use psbtbumpfee instead or restart bitcoind with -deprecatedrpc=bumpfee. This functionality will be removed in 0.22");
}
want_psbt = true;
}
RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VOBJ});
uint256 hash(ParseHashV(request.params[0], "txid"));
@@ -3359,7 +3373,7 @@ static UniValue bumpfee(const JSONRPCRequest& request)
// If wallet private keys are enabled, return the new transaction id,
// otherwise return the base64-encoded unsigned PSBT of the new transaction.
if (!pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
if (!want_psbt) {
if (!feebumper::SignTransaction(*pwallet, mtx)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Can't sign transaction.");
}
@@ -3392,6 +3406,11 @@ static UniValue bumpfee(const JSONRPCRequest& request)
return result;
}
static UniValue psbtbumpfee(const JSONRPCRequest& request)
{
return bumpfee(request);
}
UniValue rescanblockchain(const JSONRPCRequest& request)
{
RPCHelpMan{"rescanblockchain",
@@ -4137,6 +4156,7 @@ static const CRPCCommand commands[] =
{ "wallet", "addmultisigaddress", &addmultisigaddress, {"nrequired","keys","label","address_type"} },
{ "wallet", "backupwallet", &backupwallet, {"destination"} },
{ "wallet", "bumpfee", &bumpfee, {"txid", "options"} },
{ "wallet", "psbtbumpfee", &psbtbumpfee, {"txid", "options"} },
{ "wallet", "createwallet", &createwallet, {"wallet_name", "disable_private_keys", "blank", "passphrase", "avoid_reuse", "descriptors"} },
{ "wallet", "dumpprivkey", &dumpprivkey, {"address"} },
{ "wallet", "dumpwallet", &dumpwallet, {"filename"} },