#!/usr/bin/env python3 # Copyright (c) 2018-2022 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 the Partially Signed Transaction RPCs. """ from decimal import Decimal from itertools import product from random import randbytes from test_framework.descriptors import descsum_create from test_framework.key import H_POINT from test_framework.messages import ( COutPoint, CTransaction, CTxIn, CTxOut, MAX_BIP125_RBF_SEQUENCE, WITNESS_SCALE_FACTOR, ser_compact_size, ) from test_framework.psbt import ( PSBT, PSBTMap, PSBT_GLOBAL_UNSIGNED_TX, PSBT_IN_RIPEMD160, PSBT_IN_SHA256, PSBT_IN_HASH160, PSBT_IN_HASH256, PSBT_IN_NON_WITNESS_UTXO, PSBT_IN_WITNESS_UTXO, PSBT_OUT_TAP_TREE, ) from test_framework.script import CScript, OP_TRUE from test_framework.test_framework import BitcoinTestFramework from test_framework.util import ( assert_approx, assert_equal, assert_greater_than, assert_greater_than_or_equal, assert_raises_rpc_error, find_vout_for_address, ) from test_framework.wallet_util import ( generate_keypair, get_generate_key, ) import json import os class PSBTTest(BitcoinTestFramework): def add_options(self, parser): self.add_wallet_options(parser) def set_test_params(self): self.num_nodes = 3 self.extra_args = [ ["-walletrbf=1", "-addresstype=bech32", "-changetype=bech32"], #TODO: Remove address type restrictions once taproot has psbt extensions ["-walletrbf=0", "-changetype=legacy"], [] ] # whitelist peers to speed up tx relay / mempool sync for args in self.extra_args: args.append("-whitelist=noban@127.0.0.1") self.supports_cli = False def skip_test_if_missing_module(self): self.skip_if_no_wallet() def test_utxo_conversion(self): self.log.info("Check that non-witness UTXOs are removed for segwit v1+ inputs") mining_node = self.nodes[2] offline_node = self.nodes[0] online_node = self.nodes[1] # Disconnect offline node from others # Topology of test network is linear, so this one call is enough self.disconnect_nodes(0, 1) # Create watchonly on online_node online_node.createwallet(wallet_name='wonline', disable_private_keys=True) wonline = online_node.get_wallet_rpc('wonline') w2 = online_node.get_wallet_rpc(self.default_wallet_name) # Mine a transaction that credits the offline address offline_addr = offline_node.getnewaddress(address_type="bech32m") online_addr = w2.getnewaddress(address_type="bech32m") wonline.importaddress(offline_addr, "", False) mining_wallet = mining_node.get_wallet_rpc(self.default_wallet_name) mining_wallet.sendtoaddress(address=offline_addr, amount=1.0) self.generate(mining_node, nblocks=1, sync_fun=lambda: self.sync_all([online_node, mining_node])) # Construct an unsigned PSBT on the online node utxos = wonline.listunspent(addresses=[offline_addr]) raw = wonline.createrawtransaction([{"txid":utxos[0]["txid"], "vout":utxos[0]["vout"]}],[{online_addr:0.9999}]) psbt = wonline.walletprocesspsbt(online_node.converttopsbt(raw))["psbt"] assert not "not_witness_utxo" in mining_node.decodepsbt(psbt)["inputs"][0] # add non-witness UTXO manually psbt_new = PSBT.from_base64(psbt) prev_tx = wonline.gettransaction(utxos[0]["txid"])["hex"] psbt_new.i[0].map[PSBT_IN_NON_WITNESS_UTXO] = bytes.fromhex(prev_tx) assert "non_witness_utxo" in mining_node.decodepsbt(psbt_new.to_base64())["inputs"][0] # Have the offline node sign the PSBT (which will remove the non-witness UTXO) signed_psbt = offline_node.walletprocesspsbt(psbt_new.to_base64()) assert not "non_witness_utxo" in mining_node.decodepsbt(signed_psbt["psbt"])["inputs"][0] # Make sure we can mine the resulting transaction txid = mining_node.sendrawtransaction(signed_psbt["hex"]) self.generate(mining_node, nblocks=1, sync_fun=lambda: self.sync_all([online_node, mining_node])) assert_equal(online_node.gettxout(txid,0)["confirmations"], 1) wonline.unloadwallet() # Reconnect self.connect_nodes(1, 0) self.connect_nodes(0, 2) def test_input_confs_control(self): self.nodes[0].createwallet("minconf") wallet = self.nodes[0].get_wallet_rpc("minconf") # Fund the wallet with different chain heights for _ in range(2): self.nodes[1].sendmany("", {wallet.getnewaddress():1, wallet.getnewaddress():1}) self.generate(self.nodes[1], 1) unconfirmed_txid = wallet.sendtoaddress(wallet.getnewaddress(), 0.5) self.log.info("Crafting PSBT using an unconfirmed input") target_address = self.nodes[1].getnewaddress() psbtx1 = wallet.walletcreatefundedpsbt([], {target_address: 0.1}, 0, {'fee_rate': 1, 'maxconf': 0})['psbt'] # Make sure we only had the one input tx1_inputs = self.nodes[0].decodepsbt(psbtx1)['tx']['vin'] assert_equal(len(tx1_inputs), 1) utxo1 = tx1_inputs[0] assert_equal(unconfirmed_txid, utxo1['txid']) signed_tx1 = wallet.walletprocesspsbt(psbtx1) txid1 = self.nodes[0].sendrawtransaction(signed_tx1['hex']) mempool = self.nodes[0].getrawmempool() assert txid1 in mempool self.log.info("Fail to craft a new PSBT that sends more funds with add_inputs = False") assert_raises_rpc_error(-4, "The preselected coins total amount does not cover the transaction target. Please allow other inputs to be automatically selected or include more coins manually", wallet.walletcreatefundedpsbt, [{'txid': utxo1['txid'], 'vout': utxo1['vout']}], {target_address: 1}, 0, {'add_inputs': False}) self.log.info("Fail to craft a new PSBT with minconf above highest one") assert_raises_rpc_error(-4, "Insufficient funds", wallet.walletcreatefundedpsbt, [{'txid': utxo1['txid'], 'vout': utxo1['vout']}], {target_address: 1}, 0, {'add_inputs': True, 'minconf': 3, 'fee_rate': 10}) self.log.info("Fail to broadcast a new PSBT with maxconf 0 due to BIP125 rules to verify it actually chose unconfirmed outputs") psbt_invalid = wallet.walletcreatefundedpsbt([{'txid': utxo1['txid'], 'vout': utxo1['vout']}], {target_address: 1}, 0, {'add_inputs': True, 'maxconf': 0, 'fee_rate': 10})['psbt'] signed_invalid = wallet.walletprocesspsbt(psbt_invalid) assert_raises_rpc_error(-26, "bad-txns-spends-conflicting-tx", self.nodes[0].sendrawtransaction, signed_invalid['hex']) self.log.info("Craft a replacement adding inputs with highest confs possible") psbtx2 = wallet.walletcreatefundedpsbt([{'txid': utxo1['txid'], 'vout': utxo1['vout']}], {target_address: 1}, 0, {'add_inputs': True, 'minconf': 2, 'fee_rate': 10})['psbt'] tx2_inputs = self.nodes[0].decodepsbt(psbtx2)['tx']['vin'] assert_greater_than_or_equal(len(tx2_inputs), 2) for vin in tx2_inputs: if vin['txid'] != unconfirmed_txid: assert_greater_than_or_equal(self.nodes[0].gettxout(vin['txid'], vin['vout'])['confirmations'], 2) signed_tx2 = wallet.walletprocesspsbt(psbtx2) txid2 = self.nodes[0].sendrawtransaction(signed_tx2['hex']) mempool = self.nodes[0].getrawmempool() assert txid1 not in mempool assert txid2 in mempool wallet.unloadwallet() def assert_change_type(self, psbtx, expected_type): """Assert that the given PSBT has a change output with the given type.""" # The decodepsbt RPC is stateless and independent of any settings, we can always just call it on the first node decoded_psbt = self.nodes[0].decodepsbt(psbtx["psbt"]) changepos = psbtx["changepos"] assert_equal(decoded_psbt["tx"]["vout"][changepos]["scriptPubKey"]["type"], expected_type) def run_test(self): # Create and fund a raw tx for sending 10 BTC psbtx1 = self.nodes[0].walletcreatefundedpsbt([], {self.nodes[2].getnewaddress():10})['psbt'] # If inputs are specified, do not automatically add more: utxo1 = self.nodes[0].listunspent()[0] assert_raises_rpc_error(-4, "The preselected coins total amount does not cover the transaction target. " "Please allow other inputs to be automatically selected or include more coins manually", self.nodes[0].walletcreatefundedpsbt, [{"txid": utxo1['txid'], "vout": utxo1['vout']}], {self.nodes[2].getnewaddress():90}) psbtx1 = self.nodes[0].walletcreatefundedpsbt([{"txid": utxo1['txid'], "vout": utxo1['vout']}], {self.nodes[2].getnewaddress():90}, 0, {"add_inputs": True})['psbt'] assert_equal(len(self.nodes[0].decodepsbt(psbtx1)['tx']['vin']), 2) # Inputs argument can be null self.nodes[0].walletcreatefundedpsbt(None, {self.nodes[2].getnewaddress():10}) # Node 1 should not be able to add anything to it but still return the psbtx same as before psbtx = self.nodes[1].walletprocesspsbt(psbtx1)['psbt'] assert_equal(psbtx1, psbtx) # Node 0 should not be able to sign the transaction with the wallet is locked self.nodes[0].encryptwallet("password") assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].walletprocesspsbt, psbtx) # Node 0 should be able to process without signing though unsigned_tx = self.nodes[0].walletprocesspsbt(psbtx, False) assert_equal(unsigned_tx['complete'], False) self.nodes[0].walletpassphrase(passphrase="password", timeout=1000000) # Sign the transaction but don't finalize processed_psbt = self.nodes[0].walletprocesspsbt(psbt=psbtx, finalize=False) assert "hex" not in processed_psbt signed_psbt = processed_psbt['psbt'] # Finalize and send finalized_hex = self.nodes[0].finalizepsbt(signed_psbt)['hex'] self.nodes[0].sendrawtransaction(finalized_hex) # Alternative method: sign AND finalize in one command processed_finalized_psbt = self.nodes[0].walletprocesspsbt(psbt=psbtx, finalize=True) finalized_psbt = processed_finalized_psbt['psbt'] finalized_psbt_hex = processed_finalized_psbt['hex'] assert signed_psbt != finalized_psbt assert finalized_psbt_hex == finalized_hex # Manually selected inputs can be locked: assert_equal(len(self.nodes[0].listlockunspent()), 0) utxo1 = self.nodes[0].listunspent()[0] psbtx1 = self.nodes[0].walletcreatefundedpsbt([{"txid": utxo1['txid'], "vout": utxo1['vout']}], {self.nodes[2].getnewaddress():1}, 0,{"lockUnspents": True})["psbt"] assert_equal(len(self.nodes[0].listlockunspent()), 1) # Locks are ignored for manually selected inputs self.nodes[0].walletcreatefundedpsbt([{"txid": utxo1['txid'], "vout": utxo1['vout']}], {self.nodes[2].getnewaddress():1}, 0) # Create p2sh, p2wpkh, and p2wsh addresses pubkey0 = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())['pubkey'] pubkey1 = self.nodes[1].getaddressinfo(self.nodes[1].getnewaddress())['pubkey'] pubkey2 = self.nodes[2].getaddressinfo(self.nodes[2].getnewaddress())['pubkey'] # Setup watchonly wallets self.nodes[2].createwallet(wallet_name='wmulti', disable_private_keys=True) wmulti = self.nodes[2].get_wallet_rpc('wmulti') # Create all the addresses p2sh = wmulti.addmultisigaddress(2, [pubkey0, pubkey1, pubkey2], "", "legacy")['address'] p2wsh = wmulti.addmultisigaddress(2, [pubkey0, pubkey1, pubkey2], "", "bech32")['address'] p2sh_p2wsh = wmulti.addmultisigaddress(2, [pubkey0, pubkey1, pubkey2], "", "p2sh-segwit")['address'] if not self.options.descriptors: wmulti.importaddress(p2sh) wmulti.importaddress(p2wsh) wmulti.importaddress(p2sh_p2wsh) p2wpkh = self.nodes[1].getnewaddress("", "bech32") p2pkh = self.nodes[1].getnewaddress("", "legacy") p2sh_p2wpkh = self.nodes[1].getnewaddress("", "p2sh-segwit") # fund those addresses rawtx = self.nodes[0].createrawtransaction([], {p2sh:10, p2wsh:10, p2wpkh:10, p2sh_p2wsh:10, p2sh_p2wpkh:10, p2pkh:10}) rawtx = self.nodes[0].fundrawtransaction(rawtx, {"changePosition":3}) signed_tx = self.nodes[0].signrawtransactionwithwallet(rawtx['hex'])['hex'] txid = self.nodes[0].sendrawtransaction(signed_tx) self.generate(self.nodes[0], 6) # Find the output pos p2sh_pos = -1 p2wsh_pos = -1 p2wpkh_pos = -1 p2pkh_pos = -1 p2sh_p2wsh_pos = -1 p2sh_p2wpkh_pos = -1 decoded = self.nodes[0].decoderawtransaction(signed_tx) for out in decoded['vout']: if out['scriptPubKey']['address'] == p2sh: p2sh_pos = out['n'] elif out['scriptPubKey']['address'] == p2wsh: p2wsh_pos = out['n'] elif out['scriptPubKey']['address'] == p2wpkh: p2wpkh_pos = out['n'] elif out['scriptPubKey']['address'] == p2sh_p2wsh: p2sh_p2wsh_pos = out['n'] elif out['scriptPubKey']['address'] == p2sh_p2wpkh: p2sh_p2wpkh_pos = out['n'] elif out['scriptPubKey']['address'] == p2pkh: p2pkh_pos = out['n'] inputs = [{"txid": txid, "vout": p2wpkh_pos}, {"txid": txid, "vout": p2sh_p2wpkh_pos}, {"txid": txid, "vout": p2pkh_pos}] outputs = [{self.nodes[1].getnewaddress(): 29.99}] # spend single key from node 1 created_psbt = self.nodes[1].walletcreatefundedpsbt(inputs, outputs) walletprocesspsbt_out = self.nodes[1].walletprocesspsbt(created_psbt['psbt']) # Make sure it has both types of UTXOs decoded = self.nodes[1].decodepsbt(walletprocesspsbt_out['psbt']) assert 'non_witness_utxo' in decoded['inputs'][0] assert 'witness_utxo' in decoded['inputs'][0] # Check decodepsbt fee calculation (input values shall only be counted once per UTXO) assert_equal(decoded['fee'], created_psbt['fee']) assert_equal(walletprocesspsbt_out['complete'], True) self.nodes[1].sendrawtransaction(walletprocesspsbt_out['hex']) self.log.info("Test walletcreatefundedpsbt fee rate of 10000 sat/vB and 0.1 BTC/kvB produces a total fee at or slightly below -maxtxfee (~0.05290000)") res1 = self.nodes[1].walletcreatefundedpsbt(inputs, outputs, 0, {"fee_rate": 10000, "add_inputs": True}) assert_approx(res1["fee"], 0.055, 0.005) res2 = self.nodes[1].walletcreatefundedpsbt(inputs, outputs, 0, {"feeRate": "0.1", "add_inputs": True}) assert_approx(res2["fee"], 0.055, 0.005) self.log.info("Test min fee rate checks with walletcreatefundedpsbt are bypassed, e.g. a fee_rate under 1 sat/vB is allowed") res3 = self.nodes[1].walletcreatefundedpsbt(inputs, outputs, 0, {"fee_rate": "0.999", "add_inputs": True}) assert_approx(res3["fee"], 0.00000381, 0.0000001) res4 = self.nodes[1].walletcreatefundedpsbt(inputs, outputs, 0, {"feeRate": 0.00000999, "add_inputs": True}) assert_approx(res4["fee"], 0.00000381, 0.0000001) self.log.info("Test min fee rate checks with walletcreatefundedpsbt are bypassed and that funding non-standard 'zero-fee' transactions is valid") for param, zero_value in product(["fee_rate", "feeRate"], [0, 0.000, 0.00000000, "0", "0.000", "0.00000000"]): assert_equal(0, self.nodes[1].walletcreatefundedpsbt(inputs, outputs, 0, {param: zero_value, "add_inputs": True})["fee"]) self.log.info("Test invalid fee rate settings") for param, value in {("fee_rate", 100000), ("feeRate", 1)}: assert_raises_rpc_error(-4, "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {param: value, "add_inputs": True}) assert_raises_rpc_error(-3, "Amount out of range", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {param: -1, "add_inputs": True}) assert_raises_rpc_error(-3, "Amount is not a number or string", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {param: {"foo": "bar"}, "add_inputs": True}) # Test fee rate values that don't pass fixed-point parsing checks. for invalid_value in ["", 0.000000001, 1e-09, 1.111111111, 1111111111111111, "31.999999999999999999999"]: assert_raises_rpc_error(-3, "Invalid amount", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {param: invalid_value, "add_inputs": True}) # Test fee_rate values that cannot be represented in sat/vB. for invalid_value in [0.0001, 0.00000001, 0.00099999, 31.99999999]: assert_raises_rpc_error(-3, "Invalid amount", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"fee_rate": invalid_value, "add_inputs": True}) self.log.info("- raises RPC error if both feeRate and fee_rate are passed") assert_raises_rpc_error(-8, "Cannot specify both fee_rate (sat/vB) and feeRate (BTC/kvB)", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"fee_rate": 0.1, "feeRate": 0.1, "add_inputs": True}) self.log.info("- raises RPC error if both feeRate and estimate_mode passed") assert_raises_rpc_error(-8, "Cannot specify both estimate_mode and feeRate", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"estimate_mode": "economical", "feeRate": 0.1, "add_inputs": True}) for param in ["feeRate", "fee_rate"]: self.log.info("- raises RPC error if both {} and conf_target are passed".format(param)) assert_raises_rpc_error(-8, "Cannot specify both conf_target and {}. Please provide either a confirmation " "target in blocks for automatic fee estimation, or an explicit fee rate.".format(param), self.nodes[1].walletcreatefundedpsbt ,inputs, outputs, 0, {param: 1, "conf_target": 1, "add_inputs": True}) self.log.info("- raises RPC error if both fee_rate and estimate_mode are passed") assert_raises_rpc_error(-8, "Cannot specify both estimate_mode and fee_rate", self.nodes[1].walletcreatefundedpsbt ,inputs, outputs, 0, {"fee_rate": 1, "estimate_mode": "economical", "add_inputs": True}) self.log.info("- raises RPC error with invalid estimate_mode settings") for k, v in {"number": 42, "object": {"foo": "bar"}}.items(): assert_raises_rpc_error(-3, f"JSON value of type {k} for field estimate_mode is not of expected type string", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"estimate_mode": v, "conf_target": 0.1, "add_inputs": True}) for mode in ["", "foo", Decimal("3.141592")]: assert_raises_rpc_error(-8, 'Invalid estimate_mode parameter, must be one of: "unset", "economical", "conservative"', self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"estimate_mode": mode, "conf_target": 0.1, "add_inputs": True}) self.log.info("- raises RPC error with invalid conf_target settings") for mode in ["unset", "economical", "conservative"]: self.log.debug("{}".format(mode)) for k, v in {"string": "", "object": {"foo": "bar"}}.items(): assert_raises_rpc_error(-3, f"JSON value of type {k} for field conf_target is not of expected type number", self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"estimate_mode": mode, "conf_target": v, "add_inputs": True}) for n in [-1, 0, 1009]: assert_raises_rpc_error(-8, "Invalid conf_target, must be between 1 and 1008", # max value of 1008 per src/policy/fees.h self.nodes[1].walletcreatefundedpsbt, inputs, outputs, 0, {"estimate_mode": mode, "conf_target": n, "add_inputs": True}) self.log.info("Test walletcreatefundedpsbt with too-high fee rate produces total fee well above -maxtxfee and raises RPC error") # previously this was silently capped at -maxtxfee for bool_add, outputs_array in {True: outputs, False: [{self.nodes[1].getnewaddress(): 1}]}.items(): msg = "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)" assert_raises_rpc_error(-4, msg, self.nodes[1].walletcreatefundedpsbt, inputs, outputs_array, 0, {"fee_rate": 1000000, "add_inputs": bool_add}) assert_raises_rpc_error(-4, msg, self.nodes[1].walletcreatefundedpsbt, inputs, outputs_array, 0, {"feeRate": 1, "add_inputs": bool_add}) self.log.info("Test various PSBT operations") # partially sign multisig things with node 1 psbtx = wmulti.walletcreatefundedpsbt(inputs=[{"txid":txid,"vout":p2wsh_pos},{"txid":txid,"vout":p2sh_pos},{"txid":txid,"vout":p2sh_p2wsh_pos}], outputs={self.nodes[1].getnewaddress():29.99}, changeAddress=self.nodes[1].getrawchangeaddress())['psbt'] walletprocesspsbt_out = self.nodes[1].walletprocesspsbt(psbtx) psbtx = walletprocesspsbt_out['psbt'] assert_equal(walletprocesspsbt_out['complete'], False) # Unload wmulti, we don't need it anymore wmulti.unloadwallet() # partially sign with node 2. This should be complete and sendable walletprocesspsbt_out = self.nodes[2].walletprocesspsbt(psbtx) assert_equal(walletprocesspsbt_out['complete'], True) self.nodes[2].sendrawtransaction(walletprocesspsbt_out['hex']) # check that walletprocesspsbt fails to decode a non-psbt rawtx = self.nodes[1].createrawtransaction([{"txid":txid,"vout":p2wpkh_pos}], {self.nodes[1].getnewaddress():9.99}) assert_raises_rpc_error(-22, "TX decode failed", self.nodes[1].walletprocesspsbt, rawtx) # Convert a non-psbt to psbt and make sure we can decode it rawtx = self.nodes[0].createrawtransaction([], {self.nodes[1].getnewaddress():10}) rawtx = self.nodes[0].fundrawtransaction(rawtx) new_psbt = self.nodes[0].converttopsbt(rawtx['hex']) self.nodes[0].decodepsbt(new_psbt) # Make sure that a non-psbt with signatures cannot be converted signedtx = self.nodes[0].signrawtransactionwithwallet(rawtx['hex']) assert_raises_rpc_error(-22, "Inputs must not have scriptSigs and scriptWitnesses", self.nodes[0].converttopsbt, hexstring=signedtx['hex']) # permitsigdata=False by default assert_raises_rpc_error(-22, "Inputs must not have scriptSigs and scriptWitnesses", self.nodes[0].converttopsbt, hexstring=signedtx['hex'], permitsigdata=False) assert_raises_rpc_error(-22, "Inputs must not have scriptSigs and scriptWitnesses", self.nodes[0].converttopsbt, hexstring=signedtx['hex'], permitsigdata=False, iswitness=True) # Unless we allow it to convert and strip signatures self.nodes[0].converttopsbt(hexstring=signedtx['hex'], permitsigdata=True) # Create outputs to nodes 1 and 2 # (note that we intentionally create two different txs here, as we want # to check that each node is missing prevout data for one of the two # utxos, see "should only have data for one input" test below) node1_addr = self.nodes[1].getnewaddress() node2_addr = self.nodes[2].getnewaddress() utxo1 = self.create_outpoints(self.nodes[0], outputs=[{node1_addr: 13}])[0] utxo2 = self.create_outpoints(self.nodes[0], outputs=[{node2_addr: 13}])[0] self.generate(self.nodes[0], 6)[0] # Create a psbt spending outputs from nodes 1 and 2 psbt_orig = self.nodes[0].createpsbt([utxo1, utxo2], {self.nodes[0].getnewaddress():25.999}) # Update psbts, should only have data for one input and not the other psbt1 = self.nodes[1].walletprocesspsbt(psbt_orig, False, "ALL")['psbt'] psbt1_decoded = self.nodes[0].decodepsbt(psbt1) assert psbt1_decoded['inputs'][0] and not psbt1_decoded['inputs'][1] # Check that BIP32 path was added assert "bip32_derivs" in psbt1_decoded['inputs'][0] psbt2 = self.nodes[2].walletprocesspsbt(psbt_orig, False, "ALL", False)['psbt'] psbt2_decoded = self.nodes[0].decodepsbt(psbt2) assert not psbt2_decoded['inputs'][0] and psbt2_decoded['inputs'][1] # Check that BIP32 paths were not added assert "bip32_derivs" not in psbt2_decoded['inputs'][1] # Sign PSBTs (workaround issue #18039) psbt1 = self.nodes[1].walletprocesspsbt(psbt_orig)['psbt'] psbt2 = self.nodes[2].walletprocesspsbt(psbt_orig)['psbt'] # Combine, finalize, and send the psbts combined = self.nodes[0].combinepsbt([psbt1, psbt2]) finalized = self.nodes[0].finalizepsbt(combined)['hex'] self.nodes[0].sendrawtransaction(finalized) self.generate(self.nodes[0], 6) # Test additional args in walletcreatepsbt # Make sure both pre-included and funded inputs # have the correct sequence numbers based on # replaceable arg block_height = self.nodes[0].getblockcount() unspent = self.nodes[0].listunspent()[0] psbtx_info = self.nodes[0].walletcreatefundedpsbt([{"txid":unspent["txid"], "vout":unspent["vout"]}], [{self.nodes[2].getnewaddress():unspent["amount"]+1}], block_height+2, {"replaceable": False, "add_inputs": True}, False) decoded_psbt = self.nodes[0].decodepsbt(psbtx_info["psbt"]) for tx_in, psbt_in in zip(decoded_psbt["tx"]["vin"], decoded_psbt["inputs"]): assert_greater_than(tx_in["sequence"], MAX_BIP125_RBF_SEQUENCE) assert "bip32_derivs" not in psbt_in assert_equal(decoded_psbt["tx"]["locktime"], block_height+2) # Same construction with only locktime set and RBF explicitly enabled psbtx_info = self.nodes[0].walletcreatefundedpsbt([{"txid":unspent["txid"], "vout":unspent["vout"]}], [{self.nodes[2].getnewaddress():unspent["amount"]+1}], block_height, {"replaceable": True, "add_inputs": True}, True) decoded_psbt = self.nodes[0].decodepsbt(psbtx_info["psbt"]) for tx_in, psbt_in in zip(decoded_psbt["tx"]["vin"], decoded_psbt["inputs"]): assert_equal(tx_in["sequence"], MAX_BIP125_RBF_SEQUENCE) assert "bip32_derivs" in psbt_in assert_equal(decoded_psbt["tx"]["locktime"], block_height) # Same construction without optional arguments psbtx_info = self.nodes[0].walletcreatefundedpsbt([], [{self.nodes[2].getnewaddress():unspent["amount"]+1}]) decoded_psbt = self.nodes[0].decodepsbt(psbtx_info["psbt"]) for tx_in, psbt_in in zip(decoded_psbt["tx"]["vin"], decoded_psbt["inputs"]): assert_equal(tx_in["sequence"], MAX_BIP125_RBF_SEQUENCE) assert "bip32_derivs" in psbt_in assert_equal(decoded_psbt["tx"]["locktime"], 0) # Same construction without optional arguments, for a node with -walletrbf=0 unspent1 = self.nodes[1].listunspent()[0] psbtx_info = self.nodes[1].walletcreatefundedpsbt([{"txid":unspent1["txid"], "vout":unspent1["vout"]}], [{self.nodes[2].getnewaddress():unspent1["amount"]+1}], block_height, {"add_inputs": True}) decoded_psbt = self.nodes[1].decodepsbt(psbtx_info["psbt"]) for tx_in, psbt_in in zip(decoded_psbt["tx"]["vin"], decoded_psbt["inputs"]): assert_greater_than(tx_in["sequence"], MAX_BIP125_RBF_SEQUENCE) assert "bip32_derivs" in psbt_in # Make sure change address wallet does not have P2SH innerscript access to results in success # when attempting BnB coin selection self.nodes[0].walletcreatefundedpsbt([], [{self.nodes[2].getnewaddress():unspent["amount"]+1}], block_height+2, {"changeAddress":self.nodes[1].getnewaddress()}, False) # Make sure the wallet's change type is respected by default small_output = {self.nodes[0].getnewaddress():0.1} psbtx_native = self.nodes[0].walletcreatefundedpsbt([], [small_output]) self.assert_change_type(psbtx_native, "witness_v0_keyhash") psbtx_legacy = self.nodes[1].walletcreatefundedpsbt([], [small_output]) self.assert_change_type(psbtx_legacy, "pubkeyhash") # Make sure the change type of the wallet can also be overwritten psbtx_np2wkh = self.nodes[1].walletcreatefundedpsbt([], [small_output], 0, {"change_type":"p2sh-segwit"}) self.assert_change_type(psbtx_np2wkh, "scripthash") # Make sure the change type cannot be specified if a change address is given invalid_options = {"change_type":"legacy","changeAddress":self.nodes[0].getnewaddress()} assert_raises_rpc_error(-8, "both change address and address type options", self.nodes[0].walletcreatefundedpsbt, [], [small_output], 0, invalid_options) # Regression test for 14473 (mishandling of already-signed witness transaction): psbtx_info = self.nodes[0].walletcreatefundedpsbt([{"txid":unspent["txid"], "vout":unspent["vout"]}], [{self.nodes[2].getnewaddress():unspent["amount"]+1}], 0, {"add_inputs": True}) complete_psbt = self.nodes[0].walletprocesspsbt(psbtx_info["psbt"]) double_processed_psbt = self.nodes[0].walletprocesspsbt(complete_psbt["psbt"]) assert_equal(complete_psbt, double_processed_psbt) # We don't care about the decode result, but decoding must succeed. self.nodes[0].decodepsbt(double_processed_psbt["psbt"]) # Make sure unsafe inputs are included if specified self.nodes[2].createwallet(wallet_name="unsafe") wunsafe = self.nodes[2].get_wallet_rpc("unsafe") self.nodes[0].sendtoaddress(wunsafe.getnewaddress(), 2) self.sync_mempools() assert_raises_rpc_error(-4, "Insufficient funds", wunsafe.walletcreatefundedpsbt, [], [{self.nodes[0].getnewaddress(): 1}]) wunsafe.walletcreatefundedpsbt([], [{self.nodes[0].getnewaddress(): 1}], 0, {"include_unsafe": True}) # BIP 174 Test Vectors # Check that unknown values are just passed through unknown_psbt = "cHNidP8BAD8CAAAAAf//////////////////////////////////////////AAAAAAD/////AQAAAAAAAAAAA2oBAAAAAAAACg8BAgMEBQYHCAkPAQIDBAUGBwgJCgsMDQ4PAAA=" unknown_out = self.nodes[0].walletprocesspsbt(unknown_psbt)['psbt'] assert_equal(unknown_psbt, unknown_out) # Open the data file with open(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'data/rpc_psbt.json'), encoding='utf-8') as f: d = json.load(f) invalids = d['invalid'] invalid_with_msgs = d["invalid_with_msg"] valids = d['valid'] creators = d['creator'] signers = d['signer'] combiners = d['combiner'] finalizers = d['finalizer'] extractors = d['extractor'] # Invalid PSBTs for invalid in invalids: assert_raises_rpc_error(-22, "TX decode failed", self.nodes[0].decodepsbt, invalid) for invalid in invalid_with_msgs: psbt, msg = invalid assert_raises_rpc_error(-22, f"TX decode failed {msg}", self.nodes[0].decodepsbt, psbt) # Valid PSBTs for valid in valids: self.nodes[0].decodepsbt(valid) # Creator Tests for creator in creators: created_tx = self.nodes[0].createpsbt(inputs=creator['inputs'], outputs=creator['outputs'], replaceable=False) assert_equal(created_tx, creator['result']) # Signer tests for i, signer in enumerate(signers): self.nodes[2].createwallet(wallet_name="wallet{}".format(i)) wrpc = self.nodes[2].get_wallet_rpc("wallet{}".format(i)) for key in signer['privkeys']: wrpc.importprivkey(key) signed_tx = wrpc.walletprocesspsbt(signer['psbt'], True, "ALL")['psbt'] assert_equal(signed_tx, signer['result']) # Combiner test for combiner in combiners: combined = self.nodes[2].combinepsbt(combiner['combine']) assert_equal(combined, combiner['result']) # Empty combiner test assert_raises_rpc_error(-8, "Parameter 'txs' cannot be empty", self.nodes[0].combinepsbt, []) # Finalizer test for finalizer in finalizers: finalized = self.nodes[2].finalizepsbt(finalizer['finalize'], False)['psbt'] assert_equal(finalized, finalizer['result']) # Extractor test for extractor in extractors: extracted = self.nodes[2].finalizepsbt(extractor['extract'], True)['hex'] assert_equal(extracted, extractor['result']) # Unload extra wallets for i, signer in enumerate(signers): self.nodes[2].unloadwallet("wallet{}".format(i)) if self.options.descriptors: self.test_utxo_conversion() self.test_input_confs_control() # Test that psbts with p2pkh outputs are created properly p2pkh = self.nodes[0].getnewaddress(address_type='legacy') psbt = self.nodes[1].walletcreatefundedpsbt([], [{p2pkh : 1}], 0, {"includeWatching" : True}, True) self.nodes[0].decodepsbt(psbt['psbt']) # 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") addr2 = self.nodes[1].getnewaddress("", "legacy") addr3 = self.nodes[1].getnewaddress("", "p2sh-segwit") utxo1, utxo2, utxo3 = self.create_outpoints(self.nodes[1], outputs=[{addr1: 11}, {addr2: 11}, {addr3: 11}]) self.sync_all() def test_psbt_input_keys(psbt_input, keys): """Check that the psbt input has only the expected keys.""" assert_equal(set(keys), set(psbt_input.keys())) # Create a PSBT. None of the inputs are filled initially psbt = self.nodes[1].createpsbt([utxo1, utxo2, utxo3], {self.nodes[0].getnewaddress():32.999}) decoded = self.nodes[1].decodepsbt(psbt) test_psbt_input_keys(decoded['inputs'][0], []) test_psbt_input_keys(decoded['inputs'][1], []) test_psbt_input_keys(decoded['inputs'][2], []) # 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 updated = self.nodes[1].utxoupdatepsbt(psbt) decoded = self.nodes[1].decodepsbt(updated) test_psbt_input_keys(decoded['inputs'][0], ['witness_utxo', 'non_witness_utxo']) test_psbt_input_keys(decoded['inputs'][1], ['non_witness_utxo']) test_psbt_input_keys(decoded['inputs'][2], ['non_witness_utxo']) # Try again, now while providing descriptors, making P2SH-segwit work, and causing bip32_derivs and redeem_script to be filled in descs = [self.nodes[1].getaddressinfo(addr)['desc'] for addr in [addr1,addr2,addr3]] updated = self.nodes[1].utxoupdatepsbt(psbt=psbt, descriptors=descs) decoded = self.nodes[1].decodepsbt(updated) test_psbt_input_keys(decoded['inputs'][0], ['witness_utxo', 'non_witness_utxo', 'bip32_derivs']) test_psbt_input_keys(decoded['inputs'][1], ['non_witness_utxo', 'bip32_derivs']) test_psbt_input_keys(decoded['inputs'][2], ['non_witness_utxo','witness_utxo', 'bip32_derivs', 'redeem_script']) # Two PSBTs with a common input should not be joinable psbt1 = self.nodes[1].createpsbt([utxo1], {self.nodes[0].getnewaddress():Decimal('10.999')}) assert_raises_rpc_error(-8, "exists in multiple PSBTs", self.nodes[1].joinpsbts, [psbt1, updated]) # Join two distinct PSBTs addr4 = self.nodes[1].getnewaddress("", "p2sh-segwit") utxo4 = self.create_outpoints(self.nodes[0], outputs=[{addr4: 5}])[0] self.generate(self.nodes[0], 6) psbt2 = self.nodes[1].createpsbt([utxo4], {self.nodes[0].getnewaddress():Decimal('4.999')}) psbt2 = self.nodes[1].walletprocesspsbt(psbt2)['psbt'] psbt2_decoded = self.nodes[0].decodepsbt(psbt2) assert "final_scriptwitness" in psbt2_decoded['inputs'][0] and "final_scriptSig" in psbt2_decoded['inputs'][0] joined = self.nodes[0].joinpsbts([psbt, psbt2]) joined_decoded = self.nodes[0].decodepsbt(joined) assert len(joined_decoded['inputs']) == 4 and len(joined_decoded['outputs']) == 2 and "final_scriptwitness" not in joined_decoded['inputs'][3] and "final_scriptSig" not in joined_decoded['inputs'][3] # Check that joining shuffles the inputs and outputs # 10 attempts should be enough to get a shuffled join shuffled = False for _ in range(10): shuffled_joined = self.nodes[0].joinpsbts([psbt, psbt2]) shuffled |= joined != shuffled_joined if shuffled: break assert shuffled # Newly created PSBT needs UTXOs and updating addr = self.nodes[1].getnewaddress("", "p2sh-segwit") utxo = self.create_outpoints(self.nodes[0], outputs=[{addr: 7}])[0] addrinfo = self.nodes[1].getaddressinfo(addr) self.generate(self.nodes[0], 6)[0] psbt = self.nodes[1].createpsbt([utxo], {self.nodes[0].getnewaddress("", "p2sh-segwit"):Decimal('6.999')}) analyzed = self.nodes[0].analyzepsbt(psbt) assert not analyzed['inputs'][0]['has_utxo'] and not analyzed['inputs'][0]['is_final'] and analyzed['inputs'][0]['next'] == 'updater' and analyzed['next'] == 'updater' # After update with wallet, only needs signing updated = self.nodes[1].walletprocesspsbt(psbt, False, 'ALL', True)['psbt'] analyzed = self.nodes[0].analyzepsbt(updated) assert analyzed['inputs'][0]['has_utxo'] and not analyzed['inputs'][0]['is_final'] and analyzed['inputs'][0]['next'] == 'signer' and analyzed['next'] == 'signer' and analyzed['inputs'][0]['missing']['signatures'][0] == addrinfo['embedded']['witness_program'] # Check fee and size things assert analyzed['fee'] == Decimal('0.001') and analyzed['estimated_vsize'] == 134 and analyzed['estimated_feerate'] == Decimal('0.00746268') # After signing and finalizing, needs extracting signed = self.nodes[1].walletprocesspsbt(updated)['psbt'] analyzed = self.nodes[0].analyzepsbt(signed) assert analyzed['inputs'][0]['has_utxo'] and analyzed['inputs'][0]['is_final'] and analyzed['next'] == 'extractor' self.log.info("PSBT spending unspendable outputs should have error message and Creator as next") analysis = self.nodes[0].analyzepsbt('cHNidP8BAJoCAAAAAljoeiG1ba8MI76OcHBFbDNvfLqlyHV5JPVFiHuyq911AAAAAAD/////g40EJ9DsZQpoqka7CwmK6kQiwHGyyng1Kgd5WdB86h0BAAAAAP////8CcKrwCAAAAAAWAEHYXCtx0AYLCcmIauuBXlCZHdoSTQDh9QUAAAAAFv8/wADXYP/7//////8JxOh0LR2HAI8AAAAAAAEBIADC6wsAAAAAF2oUt/X69ELjeX2nTof+fZ10l+OyAokDAQcJAwEHEAABAACAAAEBIADC6wsAAAAAF2oUt/X69ELjeX2nTof+fZ10l+OyAokDAQcJAwEHENkMak8AAAAA') 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') self.log.info("PSBT with signed, but not finalized, inputs should have Finalizer as next") analysis = self.nodes[0].analyzepsbt('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') assert_equal(analysis['next'], 'finalizer') analysis = self.nodes[0].analyzepsbt('cHNidP8BAHECAAAAAfA00BFgAm6tp86RowwH6BMImQNL5zXUcTT97XoLGz0BAAAAAAD/////AgCAgWrj0AcAFgAUKNw0x8HRctAgmvoevm4u1SbN7XL87QKVAAAAABYAFPck4gF7iL4NL4wtfRAKgQbghiTUAAAAAAABAR8A8gUqAQAAABYAFJUDtxf2PHo641HEOBOAIvFMNTr2AAAA') assert_equal(analysis['next'], 'creator') assert_equal(analysis['error'], 'PSBT is not valid. Output amount invalid') analysis = self.nodes[0].analyzepsbt('cHNidP8BAJoCAAAAAkvEW8NnDtdNtDpsmze+Ht2LH35IJcKv00jKAlUs21RrAwAAAAD/////S8Rbw2cO1020OmybN74e3Ysffkglwq/TSMoCVSzbVGsBAAAAAP7///8CwLYClQAAAAAWABSNJKzjaUb3uOxixsvh1GGE3fW7zQD5ApUAAAAAFgAUKNw0x8HRctAgmvoevm4u1SbN7XIAAAAAAAEAnQIAAAACczMa321tVHuN4GKWKRncycI22aX3uXgwSFUKM2orjRsBAAAAAP7///9zMxrfbW1Ue43gYpYpGdzJwjbZpfe5eDBIVQozaiuNGwAAAAAA/v///wIA+QKVAAAAABl2qRT9zXUVA8Ls5iVqynLHe5/vSe1XyYisQM0ClQAAAAAWABRmWQUcjSjghQ8/uH4Bn/zkakwLtAAAAAAAAQEfQM0ClQAAAAAWABRmWQUcjSjghQ8/uH4Bn/zkakwLtAAAAA==') assert_equal(analysis['next'], 'creator') assert_equal(analysis['error'], 'PSBT is not valid. Input 0 specifies invalid prevout') assert_raises_rpc_error(-25, 'Inputs missing or spent', self.nodes[0].walletprocesspsbt, 'cHNidP8BAJoCAAAAAkvEW8NnDtdNtDpsmze+Ht2LH35IJcKv00jKAlUs21RrAwAAAAD/////S8Rbw2cO1020OmybN74e3Ysffkglwq/TSMoCVSzbVGsBAAAAAP7///8CwLYClQAAAAAWABSNJKzjaUb3uOxixsvh1GGE3fW7zQD5ApUAAAAAFgAUKNw0x8HRctAgmvoevm4u1SbN7XIAAAAAAAEAnQIAAAACczMa321tVHuN4GKWKRncycI22aX3uXgwSFUKM2orjRsBAAAAAP7///9zMxrfbW1Ue43gYpYpGdzJwjbZpfe5eDBIVQozaiuNGwAAAAAA/v///wIA+QKVAAAAABl2qRT9zXUVA8Ls5iVqynLHe5/vSe1XyYisQM0ClQAAAAAWABRmWQUcjSjghQ8/uH4Bn/zkakwLtAAAAAAAAQEfQM0ClQAAAAAWABRmWQUcjSjghQ8/uH4Bn/zkakwLtAAAAA==') self.log.info("Test that we can fund psbts with external inputs specified") privkey, _ = generate_keypair(wif=True) self.nodes[1].createwallet("extfund") wallet = self.nodes[1].get_wallet_rpc("extfund") # Make a weird but signable script. sh(wsh(pkh())) descriptor accomplishes this desc = descsum_create("sh(wsh(pkh({})))".format(privkey)) if self.options.descriptors: res = self.nodes[0].importdescriptors([{"desc": desc, "timestamp": "now"}]) else: res = self.nodes[0].importmulti([{"desc": desc, "timestamp": "now"}]) assert res[0]["success"] addr = self.nodes[0].deriveaddresses(desc)[0] addr_info = self.nodes[0].getaddressinfo(addr) self.nodes[0].sendtoaddress(addr, 10) self.nodes[0].sendtoaddress(wallet.getnewaddress(), 10) self.generate(self.nodes[0], 6) ext_utxo = self.nodes[0].listunspent(addresses=[addr])[0] # An external input without solving data should result in an error assert_raises_rpc_error(-4, "Not solvable pre-selected input COutPoint(%s, %s)" % (ext_utxo["txid"][0:10], ext_utxo["vout"]), wallet.walletcreatefundedpsbt, [ext_utxo], {self.nodes[0].getnewaddress(): 15}) # But funding should work when the solving data is provided psbt = wallet.walletcreatefundedpsbt([ext_utxo], {self.nodes[0].getnewaddress(): 15}, 0, {"add_inputs": True, "solving_data": {"pubkeys": [addr_info['pubkey']], "scripts": [addr_info["embedded"]["scriptPubKey"], addr_info["embedded"]["embedded"]["scriptPubKey"]]}}) signed = wallet.walletprocesspsbt(psbt['psbt']) assert not signed['complete'] signed = self.nodes[0].walletprocesspsbt(signed['psbt']) assert signed['complete'] psbt = wallet.walletcreatefundedpsbt([ext_utxo], {self.nodes[0].getnewaddress(): 15}, 0, {"add_inputs": True, "solving_data":{"descriptors": [desc]}}) signed = wallet.walletprocesspsbt(psbt['psbt']) assert not signed['complete'] signed = self.nodes[0].walletprocesspsbt(signed['psbt']) assert signed['complete'] final = signed['hex'] dec = self.nodes[0].decodepsbt(signed["psbt"]) for i, txin in enumerate(dec["tx"]["vin"]): if txin["txid"] == ext_utxo["txid"] and txin["vout"] == ext_utxo["vout"]: input_idx = i break psbt_in = dec["inputs"][input_idx] # Calculate the input weight # (prevout + sequence + length of scriptSig + scriptsig) * WITNESS_SCALE_FACTOR + len of num scriptWitness stack items + (length of stack item + stack item) * N stack items # Note that occasionally this weight estimate may be slightly larger or smaller than the real weight # as sometimes ECDSA signatures are one byte shorter than expected with a probability of 1/128 len_scriptsig = len(psbt_in["final_scriptSig"]["hex"]) // 2 if "final_scriptSig" in psbt_in else 0 len_scriptsig += len(ser_compact_size(len_scriptsig)) len_scriptwitness = (sum([(len(x) // 2) + len(ser_compact_size(len(x) // 2)) for x in psbt_in["final_scriptwitness"]]) + len(ser_compact_size(len(psbt_in["final_scriptwitness"])))) if "final_scriptwitness" in psbt_in else 0 len_prevout_txid = 32 len_prevout_index = 4 len_sequence = 4 input_weight = ((len_prevout_txid + len_prevout_index + len_sequence + len_scriptsig) * WITNESS_SCALE_FACTOR) + len_scriptwitness low_input_weight = input_weight // 2 high_input_weight = input_weight * 2 # Input weight error conditions assert_raises_rpc_error( -8, "Input weights should be specified in inputs rather than in options.", wallet.walletcreatefundedpsbt, inputs=[ext_utxo], outputs={self.nodes[0].getnewaddress(): 15}, options={"input_weights": [{"txid": ext_utxo["txid"], "vout": ext_utxo["vout"], "weight": 1000}]} ) # Funding should also work if the input weight is provided psbt = wallet.walletcreatefundedpsbt( inputs=[{"txid": ext_utxo["txid"], "vout": ext_utxo["vout"], "weight": input_weight}], outputs={self.nodes[0].getnewaddress(): 15}, add_inputs=True, ) signed = wallet.walletprocesspsbt(psbt["psbt"]) signed = self.nodes[0].walletprocesspsbt(signed["psbt"]) final = signed["hex"] assert self.nodes[0].testmempoolaccept([final])[0]["allowed"] # Reducing the weight should have a lower fee psbt2 = wallet.walletcreatefundedpsbt( inputs=[{"txid": ext_utxo["txid"], "vout": ext_utxo["vout"], "weight": low_input_weight}], outputs={self.nodes[0].getnewaddress(): 15}, add_inputs=True, ) assert_greater_than(psbt["fee"], psbt2["fee"]) # Increasing the weight should have a higher fee psbt2 = wallet.walletcreatefundedpsbt( inputs=[{"txid": ext_utxo["txid"], "vout": ext_utxo["vout"], "weight": high_input_weight}], outputs={self.nodes[0].getnewaddress(): 15}, add_inputs=True, ) assert_greater_than(psbt2["fee"], psbt["fee"]) # The provided weight should override the calculated weight when solving data is provided psbt3 = wallet.walletcreatefundedpsbt( inputs=[{"txid": ext_utxo["txid"], "vout": ext_utxo["vout"], "weight": high_input_weight}], outputs={self.nodes[0].getnewaddress(): 15}, add_inputs=True, solving_data={"descriptors": [desc]}, ) assert_equal(psbt2["fee"], psbt3["fee"]) # Import the external utxo descriptor so that we can sign for it from the test wallet if self.options.descriptors: res = wallet.importdescriptors([{"desc": desc, "timestamp": "now"}]) else: res = wallet.importmulti([{"desc": desc, "timestamp": "now"}]) assert res[0]["success"] # The provided weight should override the calculated weight for a wallet input psbt3 = wallet.walletcreatefundedpsbt( inputs=[{"txid": ext_utxo["txid"], "vout": ext_utxo["vout"], "weight": high_input_weight}], outputs={self.nodes[0].getnewaddress(): 15}, add_inputs=True, ) assert_equal(psbt2["fee"], psbt3["fee"]) self.log.info("Test signing inputs that the wallet has keys for but is not watching the scripts") self.nodes[1].createwallet(wallet_name="scriptwatchonly", disable_private_keys=True) watchonly = self.nodes[1].get_wallet_rpc("scriptwatchonly") privkey, pubkey = generate_keypair(wif=True) desc = descsum_create("wsh(pkh({}))".format(pubkey.hex())) if self.options.descriptors: res = watchonly.importdescriptors([{"desc": desc, "timestamp": "now"}]) else: res = watchonly.importmulti([{"desc": desc, "timestamp": "now"}]) assert res[0]["success"] addr = self.nodes[0].deriveaddresses(desc)[0] self.nodes[0].sendtoaddress(addr, 10) self.generate(self.nodes[0], 1) self.nodes[0].importprivkey(privkey) psbt = watchonly.sendall([wallet.getnewaddress()])["psbt"] signed_tx = self.nodes[0].walletprocesspsbt(psbt) self.nodes[0].sendrawtransaction(signed_tx["hex"]) # Same test but for taproot if self.options.descriptors: privkey, pubkey = generate_keypair(wif=True) desc = descsum_create("tr({},pk({}))".format(H_POINT, pubkey.hex())) res = watchonly.importdescriptors([{"desc": desc, "timestamp": "now"}]) assert res[0]["success"] addr = self.nodes[0].deriveaddresses(desc)[0] self.nodes[0].sendtoaddress(addr, 10) self.generate(self.nodes[0], 1) self.nodes[0].importdescriptors([{"desc": descsum_create("tr({})".format(privkey)), "timestamp":"now"}]) psbt = watchonly.sendall([wallet.getnewaddress(), addr])["psbt"] processed_psbt = self.nodes[0].walletprocesspsbt(psbt) txid = self.nodes[0].sendrawtransaction(processed_psbt["hex"]) vout = find_vout_for_address(self.nodes[0], txid, addr) # Make sure tap tree is in psbt parsed_psbt = PSBT.from_base64(psbt) assert_greater_than(len(parsed_psbt.o[vout].map[PSBT_OUT_TAP_TREE]), 0) assert "taproot_tree" in self.nodes[0].decodepsbt(psbt)["outputs"][vout] parsed_psbt.make_blank() comb_psbt = self.nodes[0].combinepsbt([psbt, parsed_psbt.to_base64()]) assert_equal(comb_psbt, psbt) self.log.info("Test that walletprocesspsbt both updates and signs a non-updated psbt containing Taproot inputs") addr = self.nodes[0].getnewaddress("", "bech32m") utxo = self.create_outpoints(self.nodes[0], outputs=[{addr: 1}])[0] psbt = self.nodes[0].createpsbt([utxo], [{self.nodes[0].getnewaddress(): 0.9999}]) signed = self.nodes[0].walletprocesspsbt(psbt) rawtx = signed["hex"] self.nodes[0].sendrawtransaction(rawtx) self.generate(self.nodes[0], 1) # Make sure tap tree is not in psbt parsed_psbt = PSBT.from_base64(psbt) assert PSBT_OUT_TAP_TREE not in parsed_psbt.o[0].map assert "taproot_tree" not in self.nodes[0].decodepsbt(psbt)["outputs"][0] parsed_psbt.make_blank() comb_psbt = self.nodes[0].combinepsbt([psbt, parsed_psbt.to_base64()]) assert_equal(comb_psbt, psbt) self.log.info("Test walletprocesspsbt raises if an invalid sighashtype is passed") assert_raises_rpc_error(-8, "all is not a valid sighash parameter.", self.nodes[0].walletprocesspsbt, psbt, sighashtype="all") self.log.info("Test decoding PSBT with per-input preimage types") # note that the decodepsbt RPC doesn't check whether preimages and hashes match hash_ripemd160, preimage_ripemd160 = randbytes(20), randbytes(50) hash_sha256, preimage_sha256 = randbytes(32), randbytes(50) hash_hash160, preimage_hash160 = randbytes(20), randbytes(50) hash_hash256, preimage_hash256 = randbytes(32), randbytes(50) tx = CTransaction() tx.vin = [CTxIn(outpoint=COutPoint(hash=int('aa' * 32, 16), n=0), scriptSig=b""), CTxIn(outpoint=COutPoint(hash=int('bb' * 32, 16), n=0), scriptSig=b""), CTxIn(outpoint=COutPoint(hash=int('cc' * 32, 16), n=0), scriptSig=b""), CTxIn(outpoint=COutPoint(hash=int('dd' * 32, 16), n=0), scriptSig=b"")] tx.vout = [CTxOut(nValue=0, scriptPubKey=b"")] psbt = PSBT() psbt.g = PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()}) psbt.i = [PSBTMap({bytes([PSBT_IN_RIPEMD160]) + hash_ripemd160: preimage_ripemd160}), PSBTMap({bytes([PSBT_IN_SHA256]) + hash_sha256: preimage_sha256}), PSBTMap({bytes([PSBT_IN_HASH160]) + hash_hash160: preimage_hash160}), PSBTMap({bytes([PSBT_IN_HASH256]) + hash_hash256: preimage_hash256})] psbt.o = [PSBTMap()] res_inputs = self.nodes[0].decodepsbt(psbt.to_base64())["inputs"] assert_equal(len(res_inputs), 4) preimage_keys = ["ripemd160_preimages", "sha256_preimages", "hash160_preimages", "hash256_preimages"] expected_hashes = [hash_ripemd160, hash_sha256, hash_hash160, hash_hash256] expected_preimages = [preimage_ripemd160, preimage_sha256, preimage_hash160, preimage_hash256] for res_input, preimage_key, hash, preimage in zip(res_inputs, preimage_keys, expected_hashes, expected_preimages): assert preimage_key in res_input assert_equal(len(res_input[preimage_key]), 1) assert hash.hex() in res_input[preimage_key] assert_equal(res_input[preimage_key][hash.hex()], preimage.hex()) self.log.info("Test that combining PSBTs with different transactions fails") tx = CTransaction() tx.vin = [CTxIn(outpoint=COutPoint(hash=int('aa' * 32, 16), n=0), scriptSig=b"")] tx.vout = [CTxOut(nValue=0, scriptPubKey=b"")] psbt1 = PSBT(g=PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()}), i=[PSBTMap()], o=[PSBTMap()]).to_base64() tx.vout[0].nValue += 1 # slightly modify tx psbt2 = PSBT(g=PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()}), i=[PSBTMap()], o=[PSBTMap()]).to_base64() assert_raises_rpc_error(-8, "PSBTs not compatible (different transactions)", self.nodes[0].combinepsbt, [psbt1, psbt2]) assert_equal(self.nodes[0].combinepsbt([psbt1, psbt1]), psbt1) self.log.info("Test that PSBT inputs are being checked via script execution") acs_prevout = CTxOut(nValue=0, scriptPubKey=CScript([OP_TRUE])) tx = CTransaction() tx.vin = [CTxIn(outpoint=COutPoint(hash=int('dd' * 32, 16), n=0), scriptSig=b"")] tx.vout = [CTxOut(nValue=0, scriptPubKey=b"")] psbt = PSBT() psbt.g = PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()}) psbt.i = [PSBTMap({bytes([PSBT_IN_WITNESS_UTXO]) : acs_prevout.serialize()})] psbt.o = [PSBTMap()] assert_equal(self.nodes[0].finalizepsbt(psbt.to_base64()), {'hex': '0200000001dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd0000000000000000000100000000000000000000000000', 'complete': True}) self.log.info("Test we don't crash when making a 0-value funded transaction at 0 fee without forcing an input selection") assert_raises_rpc_error(-4, "Transaction requires one destination of non-0 value, a non-0 feerate, or a pre-selected input", self.nodes[0].walletcreatefundedpsbt, [], [{"data": "deadbeef"}], 0, {"fee_rate": "0"}) self.log.info("Test descriptorprocesspsbt updates and signs a psbt with descriptors") self.generate(self.nodes[2], 1) # Disable the wallet for node 2 since `descriptorprocesspsbt` does not use the wallet self.restart_node(2, extra_args=["-disablewallet"]) self.connect_nodes(0, 2) self.connect_nodes(1, 2) key_info = get_generate_key() key = key_info.privkey address = key_info.p2wpkh_addr descriptor = descsum_create(f"wpkh({key})") utxo = self.create_outpoints(self.nodes[0], outputs=[{address: 1}])[0] self.sync_all() psbt = self.nodes[2].createpsbt([utxo], {self.nodes[0].getnewaddress(): 0.99999}) decoded = self.nodes[2].decodepsbt(psbt) test_psbt_input_keys(decoded['inputs'][0], []) # Test that even if the wrong descriptor is given, `witness_utxo` and `non_witness_utxo` # are still added to the psbt alt_descriptor = descsum_create(f"wpkh({get_generate_key().privkey})") alt_psbt = self.nodes[2].descriptorprocesspsbt(psbt=psbt, descriptors=[alt_descriptor], sighashtype="ALL")["psbt"] decoded = self.nodes[2].decodepsbt(alt_psbt) test_psbt_input_keys(decoded['inputs'][0], ['witness_utxo', 'non_witness_utxo']) # Test that the psbt is not finalized and does not have bip32_derivs unless specified processed_psbt = self.nodes[2].descriptorprocesspsbt(psbt=psbt, descriptors=[descriptor], sighashtype="ALL", bip32derivs=True, finalize=False) decoded = self.nodes[2].decodepsbt(processed_psbt['psbt']) test_psbt_input_keys(decoded['inputs'][0], ['witness_utxo', 'non_witness_utxo', 'partial_signatures', 'bip32_derivs']) # If psbt not finalized, test that result does not have hex assert "hex" not in processed_psbt processed_psbt = self.nodes[2].descriptorprocesspsbt(psbt=psbt, descriptors=[descriptor], sighashtype="ALL", bip32derivs=False, finalize=True) decoded = self.nodes[2].decodepsbt(processed_psbt['psbt']) test_psbt_input_keys(decoded['inputs'][0], ['witness_utxo', 'non_witness_utxo', 'final_scriptwitness']) # Test psbt is complete assert_equal(processed_psbt['complete'], True) # Broadcast transaction self.nodes[2].sendrawtransaction(processed_psbt['hex']) self.log.info("Test descriptorprocesspsbt raises if an invalid sighashtype is passed") assert_raises_rpc_error(-8, "all is not a valid sighash parameter.", self.nodes[2].descriptorprocesspsbt, psbt, [descriptor], sighashtype="all") if __name__ == '__main__': PSBTTest().main()