#!/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 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(bytes.fromhex(pk2)) pk_obj.compressed = False pk2 = pk_obj.get_bytes().hex() 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()