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#!/usr/bin/env python3
# Copyright (c) 2015-2020 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 multisig RPCs"""
import binascii
import decimal
import itertools
import json
import os
from test_framework.blocktools import COINBASE_MATURITY
from test_framework.authproxy import JSONRPCException
from test_framework.descriptors import descsum_create, drop_origins
from test_framework.key import ECPubKey, ECKey
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_raises_rpc_error,
assert_equal,
)
from test_framework.wallet_util import bytes_to_wif
class RpcCreateMultiSigTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 3
self.supports_cli = False
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def get_keys(self):
self.pub = []
self.priv = []
node0, node1, node2 = self.nodes
for _ in range(self.nkeys):
k = ECKey()
k.generate()
self.pub.append(k.get_pubkey().get_bytes().hex())
self.priv.append(bytes_to_wif(k.get_bytes(), k.is_compressed))
self.final = node2.getnewaddress()
def run_test(self):
node0, node1, node2 = self.nodes
self.check_addmultisigaddress_errors()
self.log.info('Generating blocks ...')
node0.generate(149)
self.sync_all()
self.moved = 0
for self.nkeys in [3, 5]:
for self.nsigs in [2, 3]:
for self.output_type in ["bech32", "p2sh-segwit", "legacy"]:
self.get_keys()
self.do_multisig()
self.checkbalances()
# Test mixed compressed and uncompressed pubkeys
self.log.info('Mixed compressed and uncompressed multisigs are not allowed')
pk0 = node0.getaddressinfo(node0.getnewaddress())['pubkey']
pk1 = node1.getaddressinfo(node1.getnewaddress())['pubkey']
pk2 = node2.getaddressinfo(node2.getnewaddress())['pubkey']
# decompress pk2
pk_obj = ECPubKey()
pk_obj.set(binascii.unhexlify(pk2))
pk_obj.compressed = False
pk2 = binascii.hexlify(pk_obj.get_bytes()).decode()
node0.createwallet(wallet_name='wmulti0', disable_private_keys=True)
wmulti0 = node0.get_wallet_rpc('wmulti0')
# Check all permutations of keys because order matters apparently
for keys in itertools.permutations([pk0, pk1, pk2]):
# Results should be the same as this legacy one
legacy_addr = node0.createmultisig(2, keys, 'legacy')['address']
assert_equal(legacy_addr, wmulti0.addmultisigaddress(2, keys, '', 'legacy')['address'])
# Generate addresses with the segwit types. These should all make legacy addresses
assert_equal(legacy_addr, wmulti0.createmultisig(2, keys, 'bech32')['address'])
assert_equal(legacy_addr, wmulti0.createmultisig(2, keys, 'p2sh-segwit')['address'])
assert_equal(legacy_addr, wmulti0.addmultisigaddress(2, keys, '', 'bech32')['address'])
assert_equal(legacy_addr, wmulti0.addmultisigaddress(2, keys, '', 'p2sh-segwit')['address'])
self.log.info('Testing sortedmulti descriptors with BIP 67 test vectors')
with open(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'data/rpc_bip67.json'), encoding='utf-8') as f:
vectors = json.load(f)
for t in vectors:
key_str = ','.join(t['keys'])
desc = descsum_create('sh(sortedmulti(2,{}))'.format(key_str))
assert_equal(self.nodes[0].deriveaddresses(desc)[0], t['address'])
sorted_key_str = ','.join(t['sorted_keys'])
sorted_key_desc = descsum_create('sh(multi(2,{}))'.format(sorted_key_str))
assert_equal(self.nodes[0].deriveaddresses(sorted_key_desc)[0], t['address'])
# Check that bech32m is currently not allowed
assert_raises_rpc_error(-5, "createmultisig cannot create bech32m multisig addresses", self.nodes[0].createmultisig, 2, self.pub, "bech32m")
def check_addmultisigaddress_errors(self):
if self.options.descriptors:
return
self.log.info('Check that addmultisigaddress fails when the private keys are missing')
addresses = [self.nodes[1].getnewaddress(address_type='legacy') for _ in range(2)]
assert_raises_rpc_error(-5, 'no full public key for address', lambda: self.nodes[0].addmultisigaddress(nrequired=1, keys=addresses))
for a in addresses:
# Importing all addresses should not change the result
self.nodes[0].importaddress(a)
assert_raises_rpc_error(-5, 'no full public key for address', lambda: self.nodes[0].addmultisigaddress(nrequired=1, keys=addresses))
# Bech32m address type is disallowed for legacy wallets
pubs = [self.nodes[1].getaddressinfo(addr)["pubkey"] for addr in addresses]
assert_raises_rpc_error(-5, "Bech32m multisig addresses cannot be created with legacy wallets", self.nodes[0].addmultisigaddress, 2, pubs, "", "bech32m")
def checkbalances(self):
node0, node1, node2 = self.nodes
node0.generate(COINBASE_MATURITY)
self.sync_all()
bal0 = node0.getbalance()
bal1 = node1.getbalance()
bal2 = node2.getbalance()
height = node0.getblockchaininfo()["blocks"]
assert 150 < height < 350
total = 149 * 50 + (height - 149 - 100) * 25
assert bal1 == 0
assert bal2 == self.moved
assert bal0 + bal1 + bal2 == total
def do_multisig(self):
node0, node1, node2 = self.nodes
if 'wmulti' not in node1.listwallets():
try:
node1.loadwallet('wmulti')
except JSONRPCException as e:
path = os.path.join(self.options.tmpdir, "node1", "regtest", "wallets", "wmulti")
if e.error['code'] == -18 and "Wallet file verification failed. Failed to load database path '{}'. Path does not exist.".format(path) in e.error['message']:
node1.createwallet(wallet_name='wmulti', disable_private_keys=True)
else:
raise
wmulti = node1.get_wallet_rpc('wmulti')
# Construct the expected descriptor
desc = 'multi({},{})'.format(self.nsigs, ','.join(self.pub))
if self.output_type == 'legacy':
desc = 'sh({})'.format(desc)
elif self.output_type == 'p2sh-segwit':
desc = 'sh(wsh({}))'.format(desc)
elif self.output_type == 'bech32':
desc = 'wsh({})'.format(desc)
desc = descsum_create(desc)
msig = node2.createmultisig(self.nsigs, self.pub, self.output_type)
madd = msig["address"]
mredeem = msig["redeemScript"]
assert_equal(desc, msig['descriptor'])
if self.output_type == 'bech32':
assert madd[0:4] == "bcrt" # actually a bech32 address
# compare against addmultisigaddress
msigw = wmulti.addmultisigaddress(self.nsigs, self.pub, None, self.output_type)
maddw = msigw["address"]
mredeemw = msigw["redeemScript"]
assert_equal(desc, drop_origins(msigw['descriptor']))
# addmultisigiaddress and createmultisig work the same
assert maddw == madd
assert mredeemw == mredeem
txid = node0.sendtoaddress(madd, 40)
tx = node0.getrawtransaction(txid, True)
vout = [v["n"] for v in tx["vout"] if madd == v["scriptPubKey"]["address"]]
assert len(vout) == 1
vout = vout[0]
scriptPubKey = tx["vout"][vout]["scriptPubKey"]["hex"]
value = tx["vout"][vout]["value"]
prevtxs = [{"txid": txid, "vout": vout, "scriptPubKey": scriptPubKey, "redeemScript": mredeem, "amount": value}]
node0.generate(1)
outval = value - decimal.Decimal("0.00001000")
rawtx = node2.createrawtransaction([{"txid": txid, "vout": vout}], [{self.final: outval}])
prevtx_err = dict(prevtxs[0])
del prevtx_err["redeemScript"]
assert_raises_rpc_error(-8, "Missing redeemScript/witnessScript", node2.signrawtransactionwithkey, rawtx, self.priv[0:self.nsigs-1], [prevtx_err])
# if witnessScript specified, all ok
prevtx_err["witnessScript"] = prevtxs[0]["redeemScript"]
node2.signrawtransactionwithkey(rawtx, self.priv[0:self.nsigs-1], [prevtx_err])
# both specified, also ok
prevtx_err["redeemScript"] = prevtxs[0]["redeemScript"]
node2.signrawtransactionwithkey(rawtx, self.priv[0:self.nsigs-1], [prevtx_err])
# redeemScript mismatch to witnessScript
prevtx_err["redeemScript"] = "6a" # OP_RETURN
assert_raises_rpc_error(-8, "redeemScript does not correspond to witnessScript", node2.signrawtransactionwithkey, rawtx, self.priv[0:self.nsigs-1], [prevtx_err])
# redeemScript does not match scriptPubKey
del prevtx_err["witnessScript"]
assert_raises_rpc_error(-8, "redeemScript/witnessScript does not match scriptPubKey", node2.signrawtransactionwithkey, rawtx, self.priv[0:self.nsigs-1], [prevtx_err])
# witnessScript does not match scriptPubKey
prevtx_err["witnessScript"] = prevtx_err["redeemScript"]
del prevtx_err["redeemScript"]
assert_raises_rpc_error(-8, "redeemScript/witnessScript does not match scriptPubKey", node2.signrawtransactionwithkey, rawtx, self.priv[0:self.nsigs-1], [prevtx_err])
rawtx2 = node2.signrawtransactionwithkey(rawtx, self.priv[0:self.nsigs - 1], prevtxs)
rawtx3 = node2.signrawtransactionwithkey(rawtx2["hex"], [self.priv[-1]], prevtxs)
self.moved += outval
tx = node0.sendrawtransaction(rawtx3["hex"], 0)
blk = node0.generate(1)[0]
assert tx in node0.getblock(blk)["tx"]
txinfo = node0.getrawtransaction(tx, True, blk)
self.log.info("n/m=%d/%d %s size=%d vsize=%d weight=%d" % (self.nsigs, self.nkeys, self.output_type, txinfo["size"], txinfo["vsize"], txinfo["weight"]))
wmulti.unloadwallet()
if __name__ == '__main__':
RpcCreateMultiSigTest().main()
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