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Merge #21201: rpc: Disallow sendtoaddress and sendmany when private keys disabled

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6bfbc97d716faad38c87603ac6049d222236d623 test: disallow sendtoaddress/sendmany when private keys disabled (Jon Atack)
0997019e7681efb00847a7246c15ac8f235128d8 Disallow sendtoaddress and sendmany when private keys disabled (Andrew Chow)

Pull request description:

  Since `sendtoaddress` and `sendmany` (which use the `SendMoney` function) create and commit a transaction, they should not do anything when the wallet does not have private keys. Otherwise a valid transaction cannot be made.

  Fixes #21104

ACKs for top commit:
  jonatack:
    ACK 6bfbc97d716faad38c87603ac6049d222236d623
  meshcollider:
    utACK 6bfbc97d716faad38c87603ac6049d222236d623
  kristapsk:
    ACK 6bfbc97d716faad38c87603ac6049d222236d623. "Error: Private keys are disabled for this wallet" is definitely a better error message than "Insufficient funds" here. Hopefully change of error code from -6 to -4 doesn't break any software using Bitcoin JSON-RPC API.

Tree-SHA512: f277d6b5252e43942d568614032596f2c0827f00cd0cb71e44ffcb9822bfb15a71730a3e3688f31e59ba4eb7d275250c4e65ad4b6b3e96be6314c56a672432fb
This commit is contained in:
Samuel Dobson 2021-02-19 11:37:57 +13:00 committed by Konstantin Akimov
parent 5ad8a489a5
commit 9e9975f83b
No known key found for this signature in database
GPG Key ID: 2176C4A5D01EA524
2 changed files with 13 additions and 2 deletions
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8
src/wallet/rpcwallet.cpp
View File

@ -382,6 +382,12 @@ UniValue SendMoney(CWallet& wallet, const CCoinControl &coin_control, std::vecto
{
EnsureWalletIsUnlocked(wallet);
// This function is only used by sendtoaddress and sendmany.
// This should always try to sign, if we don't have private keys, don't try to do anything here.
if (wallet.IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error: Private keys are disabled for this wallet");
}
if (coin_control.IsUsingCoinJoin()) {
map_value["DS"] = "1";
}
@ -392,7 +398,7 @@ UniValue SendMoney(CWallet& wallet, const CCoinControl &coin_control, std::vecto
bilingual_str error;
CTransactionRef tx;
FeeCalculation fee_calc_out;
bool fCreated = wallet.CreateTransaction(recipients, tx, nFeeRequired, nChangePosRet, error, coin_control, fee_calc_out, !wallet.IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS));
const bool fCreated = wallet.CreateTransaction(recipients, tx, nFeeRequired, nChangePosRet, error, coin_control, fee_calc_out, true);
if (!fCreated) {
throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, error.original);
}

7
test/functional/wallet_watchonly.py
View File

@ -2,7 +2,7 @@
# Copyright (c) 2018-2019 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test createwallet arguments.
"""Test createwallet watchonly arguments.
"""
from test_framework.blocktools import COINBASE_MATURITY
@ -51,6 +51,11 @@ class CreateWalletWatchonlyTest(BitcoinTestFramework):
assert_equal(len(wo_wallet.listtransactions()), 1)
assert_equal(wo_wallet.getbalance(include_watchonly=False), 0)
self.log.info('Test sending from a watch-only wallet raises RPC error')
msg = "Error: Private keys are disabled for this wallet"
assert_raises_rpc_error(-4, msg, wo_wallet.sendtoaddress, a1, 0.1)
assert_raises_rpc_error(-4, msg, wo_wallet.sendmany, amounts={a1: 0.1})
self.log.info('Testing listreceivedbyaddress watch-only defaults')
result = wo_wallet.listreceivedbyaddress()
assert_equal(len(result), 1)