diff options
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 65 | ||||
| -rwxr-xr-x | test/functional/rpc_psbt.py | 29 |
2 files changed, 93 insertions, 1 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 7fe73e56da..2adfd0c0fc 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -1691,6 +1691,70 @@ UniValue converttopsbt(const JSONRPCRequest& request) return EncodeBase64((unsigned char*)ssTx.data(), ssTx.size()); } +UniValue utxoupdatepsbt(const JSONRPCRequest& request) +{ + if (request.fHelp || request.params.size() != 1) { + throw std::runtime_error( + RPCHelpMan{"utxoupdatepsbt", + "\nUpdates a PSBT with witness UTXOs retrieved from the UTXO set or the mempool.\n", + { + {"psbt", RPCArg::Type::STR, RPCArg::Optional::NO, "A base64 string of a PSBT"} + }, + RPCResult { + " \"psbt\" (string) The base64-encoded partially signed transaction with inputs updated\n" + }, + RPCExamples { + HelpExampleCli("utxoupdatepsbt", "\"psbt\"") + }}.ToString()); + } + + RPCTypeCheck(request.params, {UniValue::VSTR}, true); + + // Unserialize the transactions + PartiallySignedTransaction psbtx; + std::string error; + if (!DecodeBase64PSBT(psbtx, request.params[0].get_str(), error)) { + throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed %s", error)); + } + + // 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 : psbtx.tx->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 + } + + // Fill the inputs + for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) { + PSBTInput& input = psbtx.inputs.at(i); + + if (input.non_witness_utxo || !input.witness_utxo.IsNull()) { + continue; + } + + const Coin& coin = view.AccessCoin(psbtx.tx->vin[i].prevout); + + std::vector<std::vector<unsigned char>> solutions_data; + txnouttype which_type = Solver(coin.out.scriptPubKey, solutions_data); + if (which_type == TX_WITNESS_V0_SCRIPTHASH || which_type == TX_WITNESS_V0_KEYHASH || which_type == TX_WITNESS_UNKNOWN) { + input.witness_utxo = coin.out; + } + } + + CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); + ssTx << psbtx; + return EncodeBase64((unsigned char*)ssTx.data(), ssTx.size()); +} + // clang-format off static const CRPCCommand commands[] = { // category name actor (function) argNames @@ -1709,6 +1773,7 @@ static const CRPCCommand commands[] = { "rawtransactions", "finalizepsbt", &finalizepsbt, {"psbt", "extract"} }, { "rawtransactions", "createpsbt", &createpsbt, {"inputs","outputs","locktime","replaceable"} }, { "rawtransactions", "converttopsbt", &converttopsbt, {"hexstring","permitsigdata","iswitness"} }, + { "rawtransactions", "utxoupdatepsbt", &utxoupdatepsbt, {"psbt"} }, { "blockchain", "gettxoutproof", &gettxoutproof, {"txids", "blockhash"} }, { "blockchain", "verifytxoutproof", &verifytxoutproof, {"proof"} }, diff --git a/test/functional/rpc_psbt.py b/test/functional/rpc_psbt.py index c98f105828..28507267ce 100755 --- a/test/functional/rpc_psbt.py +++ b/test/functional/rpc_psbt.py @@ -20,7 +20,7 @@ class PSBTTest(BitcoinTestFramework): self.setup_clean_chain = False self.num_nodes = 3 # TODO: remove -txindex. Currently required for getrawtransaction call. - self.extra_args = [[], ["-txindex"], ["-txindex"]] + self.extra_args = [["-txindex"], ["-txindex"], ["-txindex"]] def skip_test_if_missing_module(self): self.skip_if_no_wallet() @@ -296,5 +296,32 @@ class PSBTTest(BitcoinTestFramework): # Test decoding error: invalid base64 assert_raises_rpc_error(-22, "TX decode failed invalid base64", self.nodes[0].decodepsbt, ";definitely not base64;") + # Send to all types of addresses + addr1 = self.nodes[1].getnewaddress("", "bech32") + txid1 = self.nodes[0].sendtoaddress(addr1, 11) + vout1 = find_output(self.nodes[0], txid1, 11) + addr2 = self.nodes[1].getnewaddress("", "legacy") + txid2 = self.nodes[0].sendtoaddress(addr2, 11) + vout2 = find_output(self.nodes[0], txid2, 11) + addr3 = self.nodes[1].getnewaddress("", "p2sh-segwit") + txid3 = self.nodes[0].sendtoaddress(addr3, 11) + vout3 = find_output(self.nodes[0], txid3, 11) + self.sync_all() + + # Update a PSBT with UTXOs from the node + # Bech32 inputs should be filled with witness UTXO. Other inputs should not be filled because they are non-witness + psbt = self.nodes[1].createpsbt([{"txid":txid1, "vout":vout1},{"txid":txid2, "vout":vout2},{"txid":txid3, "vout":vout3}], {self.nodes[0].getnewaddress():32.999}) + decoded = self.nodes[1].decodepsbt(psbt) + assert "witness_utxo" not in decoded['inputs'][0] and "non_witness_utxo" not in decoded['inputs'][0] + assert "witness_utxo" not in decoded['inputs'][1] and "non_witness_utxo" not in decoded['inputs'][1] + assert "witness_utxo" not in decoded['inputs'][2] and "non_witness_utxo" not in decoded['inputs'][2] + updated = self.nodes[1].utxoupdatepsbt(psbt) + decoded = self.nodes[1].decodepsbt(updated) + assert "witness_utxo" in decoded['inputs'][0] and "non_witness_utxo" not in decoded['inputs'][0] + assert "witness_utxo" not in decoded['inputs'][1] and "non_witness_utxo" not in decoded['inputs'][1] + assert "witness_utxo" not in decoded['inputs'][2] and "non_witness_utxo" not in decoded['inputs'][2] + + + if __name__ == '__main__': PSBTTest().main() |