diff options
| -rw-r--r-- | src/node/psbt.cpp | 12 | ||||
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 22 | ||||
| -rwxr-xr-x | test/functional/rpc_psbt.py | 9 |
3 files changed, 40 insertions, 3 deletions
diff --git a/src/node/psbt.cpp b/src/node/psbt.cpp index 9a30c3f083..69fb1a28a9 100644 --- a/src/node/psbt.cpp +++ b/src/node/psbt.cpp @@ -2,6 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#include <amount.h> #include <coins.h> #include <consensus/tx_verify.h> #include <node/psbt.h> @@ -31,6 +32,10 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx) // Check for a UTXO CTxOut utxo; if (psbtx.GetInputUTXO(utxo, i)) { + if (!MoneyRange(utxo.nValue) || !MoneyRange(in_amt + utxo.nValue)) { + result.SetInvalid(strprintf("PSBT is not valid. Input %u has invalid value", i)); + return result; + } in_amt += utxo.nValue; input_analysis.has_utxo = true; } else { @@ -85,9 +90,16 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx) // Get the output amount CAmount out_amt = std::accumulate(psbtx.tx->vout.begin(), psbtx.tx->vout.end(), CAmount(0), [](CAmount a, const CTxOut& b) { + if (!MoneyRange(a) || !MoneyRange(b.nValue) || !MoneyRange(a + b.nValue)) { + return CAmount(-1); + } return a += b.nValue; } ); + if (!MoneyRange(out_amt)) { + result.SetInvalid(strprintf("PSBT is not valid. Output amount invalid")); + return result; + } // Get the fee CAmount fee = in_amt - out_amt; diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 2fd6b9709f..3b202d6538 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -1074,7 +1074,12 @@ UniValue decodepsbt(const JSONRPCRequest& request) UniValue out(UniValue::VOBJ); out.pushKV("amount", ValueFromAmount(txout.nValue)); - total_in += txout.nValue; + if (MoneyRange(txout.nValue) && MoneyRange(total_in + txout.nValue)) { + total_in += txout.nValue; + } else { + // Hack to just not show fee later + have_all_utxos = false; + } UniValue o(UniValue::VOBJ); ScriptToUniv(txout.scriptPubKey, o, true); @@ -1084,7 +1089,13 @@ UniValue decodepsbt(const JSONRPCRequest& request) 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; + CAmount utxo_val = input.non_witness_utxo->vout[psbtx.tx->vin[i].prevout.n].nValue; + if (MoneyRange(utxo_val) && MoneyRange(total_in + utxo_val)) { + total_in += utxo_val; + } else { + // Hack to just not show fee later + have_all_utxos = false; + } } else { have_all_utxos = false; } @@ -1200,7 +1211,12 @@ UniValue decodepsbt(const JSONRPCRequest& request) outputs.push_back(out); // Fee calculation - output_value += psbtx.tx->vout[i].nValue; + if (MoneyRange(psbtx.tx->vout[i].nValue) && MoneyRange(output_value + psbtx.tx->vout[i].nValue)) { + output_value += psbtx.tx->vout[i].nValue; + } else { + // Hack to just not show fee later + have_all_utxos = false; + } } result.pushKV("outputs", outputs); if (have_all_utxos) { diff --git a/test/functional/rpc_psbt.py b/test/functional/rpc_psbt.py index 57333955b2..7c72c3e872 100755 --- a/test/functional/rpc_psbt.py +++ b/test/functional/rpc_psbt.py @@ -421,5 +421,14 @@ class PSBTTest(BitcoinTestFramework): assert_equal(analysis['next'], 'creator') assert_equal(analysis['error'], 'PSBT is not valid. Input 0 spends unspendable output') + self.log.info("PSBT with invalid values should have error message and Creator as next") + analysis = self.nodes[0].analyzepsbt('cHNidP8BAHECAAAAAfA00BFgAm6tp86RowwH6BMImQNL5zXUcTT97XoLGz0BAAAAAAD/////AgD5ApUAAAAAFgAUKNw0x8HRctAgmvoevm4u1SbN7XL87QKVAAAAABYAFPck4gF7iL4NL4wtfRAKgQbghiTUAAAAAAABAR8AgIFq49AHABYAFJUDtxf2PHo641HEOBOAIvFMNTr2AAAA') + assert_equal(analysis['next'], 'creator') + assert_equal(analysis['error'], 'PSBT is not valid. Input 0 has invalid value') + + analysis = self.nodes[0].analyzepsbt('cHNidP8BAHECAAAAAfA00BFgAm6tp86RowwH6BMImQNL5zXUcTT97XoLGz0BAAAAAAD/////AgCAgWrj0AcAFgAUKNw0x8HRctAgmvoevm4u1SbN7XL87QKVAAAAABYAFPck4gF7iL4NL4wtfRAKgQbghiTUAAAAAAABAR8A8gUqAQAAABYAFJUDtxf2PHo641HEOBOAIvFMNTr2AAAA') + assert_equal(analysis['next'], 'creator') + assert_equal(analysis['error'], 'PSBT is not valid. Output amount invalid') + if __name__ == '__main__': PSBTTest().main() |