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1#!/usr/bin/env python3
2# Copyright (c) 2018-present The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5"""Test the Partially Signed Transaction RPCs.
6"""
7from decimal import Decimal
8from itertools import product
9from random import randbytes
10
11from test_framework.address import base58_to_byte
12from test_framework.blocktools import (
13    MAX_STANDARD_TX_WEIGHT,
14)
15from test_framework.descriptors import descsum_create
16from test_framework.extendedkey import hardened
17from test_framework.key import H_POINT
18from test_framework.messages import (
19    COutPoint,
20    CTransaction,
21    CTxIn,
22    CTxOut,
23    MAX_BIP125_RBF_SEQUENCE,
24    WITNESS_SCALE_FACTOR,
25    ser_compact_size,
26)
27from test_framework.psbt import (
28    PSBT,
29    PSBTMap,
30    PSBT_GLOBAL_PROPRIETARY,
31    PSBT_GLOBAL_UNSIGNED_TX,
32    PSBT_GLOBAL_VERSION,
33    PSBT_GLOBAL_XPUB,
34    PSBT_IN_RIPEMD160,
35    PSBT_IN_SHA256,
36    PSBT_IN_SIGHASH_TYPE,
37    PSBT_IN_HASH160,
38    PSBT_IN_HASH256,
39    PSBT_IN_MUSIG2_PARTIAL_SIG,
40    PSBT_IN_MUSIG2_PARTICIPANT_PUBKEYS,
41    PSBT_IN_MUSIG2_PUB_NONCE,
42    PSBT_IN_NON_WITNESS_UTXO,
43    PSBT_IN_PROPRIETARY,
44    PSBT_IN_TAP_BIP32_DERIVATION,
45    PSBT_IN_TAP_INTERNAL_KEY,
46    PSBT_IN_TAP_LEAF_SCRIPT,
47    PSBT_IN_WITNESS_UTXO,
48    PSBT_IN_FINAL_SCRIPTWITNESS,
49    PSBT_OUT_MUSIG2_PARTICIPANT_PUBKEYS,
50    PSBT_OUT_PROPRIETARY,
51    PSBT_OUT_TAP_TREE,
52    PSBT_OUT_SCRIPT,
53)
54from test_framework.script import CScript, LEAF_VERSION_TAPSCRIPT, OP_TRUE, SIGHASH_ALL, SIGHASH_ANYONECANPAY, hash160
55from test_framework.script_util import MIN_STANDARD_TX_NONWITNESS_SIZE, output_key_to_p2tr_script
56from test_framework.test_framework import BitcoinTestFramework
57from test_framework.util import (
58    assert_not_equal,
59    assert_approx,
60    assert_equal,
61    assert_greater_than,
62    assert_greater_than_or_equal,
63    assert_raises_rpc_error,
64    find_vout_for_address,
65    wallet_importprivkey,
66    bitflipper
67)
68from test_framework.wallet_util import (
69    calculate_input_weight,
70    generate_keypair,
71    get_generate_key,
72)
73
74import json
75import os
76
77
78class PSBTTest(BitcoinTestFramework):
79    def set_test_params(self):
80        self.num_nodes = 3
81        self.extra_args = [
82            [],
83            ["-changetype=legacy"],
84            []
85        ]
86        # whitelist peers to speed up tx relay / mempool sync
87        for args in self.extra_args:
88            args.append("[email protected]")
89
90    def skip_test_if_missing_module(self):
91        self.skip_if_no_wallet()
92
93    @staticmethod
94    def create_psbt(inputs=None, outputs=None):
95        if inputs is None:
96            inputs = {}
97        if outputs is None:
98            outputs = {}
99        tx = CTransaction()
100        tx.vin = [CTxIn(outpoint=COutPoint(hash=0, n=0))]
101        tx.vout = [CTxOut(nValue=1, scriptPubKey=CScript([OP_TRUE]))]
102
103        # https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki#specification
104        psbt = PSBT()
105        # global map
106        psbt.g = PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()})
107        # input map
108        psbt.i = [PSBTMap(inputs)]
109        # output map
110        psbt.o = [PSBTMap(outputs)]
111        return psbt
112
113    def test_psbt_incomplete_after_invalid_modification(self):
114        self.log.info("Check that PSBT is correctly marked as incomplete after invalid modification")
115        node = self.nodes[2]
116        wallet = node.get_wallet_rpc(self.default_wallet_name)
117        address = wallet.getnewaddress()
118        wallet.sendtoaddress(address=address, amount=1.0)
119        self.generate(node, nblocks=1)
120
121        utxos = wallet.listunspent(addresses=[address])
122        psbt = wallet.createpsbt([{"txid": utxos[0]["txid"], "vout": utxos[0]["vout"]}], [{wallet.getnewaddress(): 0.9999}])
123        signed_psbt = wallet.walletprocesspsbt(psbt)["psbt"]
124
125        # Modify the raw transaction by changing the output address, so the signature is no longer valid
126        signed_psbt_obj = PSBT.from_base64(signed_psbt)
127        signed_psbt_obj.o[0].map[PSBT_OUT_SCRIPT] = CScript([OP_TRUE])
128
129        # Check that the walletprocesspsbt call succeeds but also recognizes that the transaction is not complete
130        signed_psbt_incomplete = wallet.walletprocesspsbt(psbt=signed_psbt_obj.to_base64(), finalize=False)
131        assert_equal(signed_psbt_incomplete["complete"], False)
132
133    def test_utxo_conversion(self):
134        self.log.info("Check that non-witness UTXOs are removed for segwit v1+ inputs")
135        mining_node = self.nodes[2]
136        offline_node = self.nodes[0]
137        online_node = self.nodes[1]
138
139        # Disconnect offline node from others
140        # Topology of test network is linear, so this one call is enough
141        self.disconnect_nodes(0, 1)
142
143        # Create watchonly on online_node
144        online_node.createwallet(wallet_name='wonline', disable_private_keys=True)
145        wonline = online_node.get_wallet_rpc('wonline')
146        w2 = online_node.get_wallet_rpc(self.default_wallet_name)
147
148        # Mine a transaction that credits the offline address
149        offline_addr = offline_node.getnewaddress(address_type="bech32m")
150        online_addr = w2.getnewaddress(address_type="bech32m")
151        import_res = wonline.importdescriptors([{"desc": offline_node.getaddressinfo(offline_addr)["desc"], "timestamp": "now"}])
152        assert_equal(import_res[0]["success"], True)
153        mining_wallet = mining_node.get_wallet_rpc(self.default_wallet_name)
154        mining_wallet.sendtoaddress(address=offline_addr, amount=1.0)
155        self.generate(mining_node, nblocks=1, sync_fun=lambda: self.sync_all([online_node, mining_node]))
156
157        # Construct an unsigned PSBT on the online node
158        utxos = wonline.listunspent(addresses=[offline_addr])
159        raw = wonline.createrawtransaction([{"txid":utxos[0]["txid"], "vout":utxos[0]["vout"]}],[{online_addr:0.9999}])
160        psbt = wonline.walletprocesspsbt(online_node.converttopsbt(raw))["psbt"]
161        assert "not_witness_utxo" not in mining_node.decodepsbt(psbt)["inputs"][0]
162
163        # add non-witness UTXO manually
164        psbt_new = PSBT.from_base64(psbt)
165        prev_tx = wonline.gettransaction(utxos[0]["txid"])["hex"]
166        psbt_new.i[0].map[PSBT_IN_NON_WITNESS_UTXO] = bytes.fromhex(prev_tx)
167        assert "non_witness_utxo" in mining_node.decodepsbt(psbt_new.to_base64())["inputs"][0]
168
169        # Have the offline node sign the PSBT (which will remove the non-witness UTXO)
170        signed_psbt = offline_node.walletprocesspsbt(psbt_new.to_base64())
171        assert "non_witness_utxo" not in mining_node.decodepsbt(signed_psbt["psbt"])["inputs"][0]
172
173        # Make sure we can mine the resulting transaction
174        txid = mining_node.sendrawtransaction(signed_psbt["hex"])
175        self.generate(mining_node, nblocks=1, sync_fun=lambda: self.sync_all([online_node, mining_node]))
176        assert_equal(online_node.gettxout(txid,0)["confirmations"], 1)
177
178        wonline.unloadwallet()
179
180        # Reconnect
181        self.connect_nodes(1, 0)
182        self.connect_nodes(0, 2)
183
184    def test_input_confs_control(self):
185        self.nodes[0].createwallet("minconf")
186        wallet = self.nodes[0].get_wallet_rpc("minconf")
187
188        # Fund the wallet with different chain heights
189        for _ in range(2):
190            self.nodes[1].sendmany("", {wallet.getnewaddress():1, wallet.getnewaddress():1})
191            self.generate(self.nodes[1], 1)
192
193        unconfirmed_txid = wallet.sendtoaddress(wallet.getnewaddress(), 0.5)
194
195        self.log.info("Crafting PSBT using an unconfirmed input")
196        target_address = self.nodes[1].getnewaddress()
197        psbtx1 = wallet.walletcreatefundedpsbt([], {target_address: 0.1}, 0, {'fee_rate': 1, 'maxconf': 0})['psbt']
198
199        # Make sure we only had the one input
200        tx1_inputs = self.nodes[0].decodepsbt(psbtx1)['inputs']
201        assert_equal(len(tx1_inputs), 1)
202
203        utxo1 = tx1_inputs[0]
204        assert_equal(unconfirmed_txid, utxo1['previous_txid'])
205
206        signed_tx1 = wallet.walletprocesspsbt(psbtx1)
207        txid1 = self.nodes[0].sendrawtransaction(signed_tx1['hex'])
208
209        mempool = self.nodes[0].getrawmempool()
210        assert txid1 in mempool
211
212        self.log.info("Fail to craft a new PSBT that sends more funds with add_inputs = False")
213        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['previous_txid'], 'vout': utxo1['previous_vout']}], {target_address: 1}, 0, {'add_inputs': False})
214
215        self.log.info("Fail to craft a new PSBT with minconf above highest one")
216        assert_raises_rpc_error(-4, "Insufficient funds", wallet.walletcreatefundedpsbt, [{'txid': utxo1['previous_txid'], 'vout': utxo1['previous_vout']}], {target_address: 1}, 0, {'add_inputs': True, 'minconf': 3, 'fee_rate': 10})
217
218        self.log.info("Fail to broadcast a new PSBT with maxconf 0 due to BIP125 rules to verify it actually chose unconfirmed outputs")
219        psbt_invalid = wallet.walletcreatefundedpsbt([{'txid': utxo1['previous_txid'], 'vout': utxo1['previous_vout']}], {target_address: 1}, 0, {'add_inputs': True, 'maxconf': 0, 'fee_rate': 10})['psbt']
220        signed_invalid = wallet.walletprocesspsbt(psbt_invalid)
221        assert_raises_rpc_error(-26, "bad-txns-spends-conflicting-tx", self.nodes[0].sendrawtransaction, signed_invalid['hex'])
222
223        self.log.info("Craft a replacement adding inputs with highest confs possible")
224        psbtx2 = wallet.walletcreatefundedpsbt([{'txid': utxo1['previous_txid'], 'vout': utxo1['previous_vout']}], {target_address: 1}, 0, {'add_inputs': True, 'minconf': 2, 'fee_rate': 10})['psbt']
225        tx2_inputs = self.nodes[0].decodepsbt(psbtx2)['inputs']
226        assert_greater_than_or_equal(len(tx2_inputs), 2)
227        for vin in tx2_inputs:
228            if vin['previous_txid'] != unconfirmed_txid:
229                assert_greater_than_or_equal(self.nodes[0].gettxout(vin['previous_txid'], vin['previous_vout'])['confirmations'], 2)
230
231        signed_tx2 = wallet.walletprocesspsbt(psbtx2)
232        txid2 = self.nodes[0].sendrawtransaction(signed_tx2['hex'])
233
234        mempool = self.nodes[0].getrawmempool()
235        assert txid1 not in mempool
236        assert txid2 in mempool
237
238        wallet.unloadwallet()
239
240    def test_decodepsbt_musig2_input_output_types(self):
241        self.log.info("Test decoding PSBT with MuSig2 per-input and per-output types")
242        # create 2-of-2 musig2 using fake aggregate key, leaf hash, pubnonce, and partial sig
243        # TODO: actually implement MuSig2 aggregation (for decoding only it doesn't matter though)
244        _, in_pubkey1 = generate_keypair()
245        _, in_pubkey2 = generate_keypair()
246        _, in_fake_agg_pubkey = generate_keypair()
247        fake_leaf_hash = randbytes(32)
248        fake_pubnonce = randbytes(66)
249        fake_partialsig = randbytes(32)
250        tx = CTransaction()

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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