dash/test/functional/wallet_dump.py

#!/usr/bin/env python3
# Copyright (c) 2016 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 dumpwallet RPC."""
import os

from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
    assert_equal,
    assert_raises_rpc_error,
)


def read_dump(file_name, addrs, script_addrs, hd_master_addr_old):
    """
    Read the given dump, count the addrs that match, count change and reserve.
    Also check that the old hd_master is inactive
    """
    with open(file_name, encoding='utf8') as inputfile:
        found_addr = 0
        found_script_addr = 0
        found_addr_chg = 0
        found_addr_rsv = 0
        hd_master_addr_ret = None
        for line in inputfile:
            # only read non comment lines
            if line[0] != "#" and len(line) > 10:
                # split out some data
                key_label, comment = line.split("#")
                # key = key_label.split(" ")[0]
                keytype = key_label.split(" ")[2]
                if len(comment) > 1:
                    addr_keypath = comment.split(" addr=")[1]
                    addr = addr_keypath.split(" ")[0]
                    keypath = None
                    if keytype == "inactivehdseed=1":
                        # ensure the old master is still available
                        assert(hd_master_addr_old == addr)
                    elif keytype == "hdseed=1":
                        # ensure we have generated a new hd master key
                        assert(hd_master_addr_old != addr)
                        hd_master_addr_ret = addr
                    elif keytype == "script=1":
                        # scripts don't have keypaths
                        keypath = None
                    else:
                        keypath = addr_keypath.rstrip().split("hdkeypath=")[1]

                    # count key types
                    for addrObj in addrs:
                        if addrObj['address'] == addr and addrObj['hdkeypath'] == keypath and keytype == "label=":
                            found_addr += 1
                            break
                        elif keytype == "change=1":
                            found_addr_chg += 1
                            break
                        elif keytype == "reserve=1":
                            found_addr_rsv += 1
                            break

                    # count scripts
                    for script_addr in script_addrs:
                        if script_addr == addr.rstrip() and keytype == "script=1":
                            found_script_addr += 1
                            break

        return found_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret


class WalletDumpTest(BitcoinTestFramework):
    def set_test_params(self):
        self.setup_clean_chain = True
        self.num_nodes = 1
        self.extra_args = [["-keypool=90", "-usehd=1"]]

    def setup_network(self):
        # TODO remove this when usehd=1 becomes the default
        # use our own cache and -usehd=1 as extra arg as the default cache is run with -usehd=0
        self.options.tmpdir = os.path.join(self.options.tmpdir, 'hd')
        self.options.cachedir = os.path.join(self.options.cachedir, 'hd')
        self._initialize_chain(extra_args=self.extra_args[0])
        self.set_cache_mocktime()
        # Use 1 minute timeout because the initial getnewaddress RPC can take
        # longer than the default 30 seconds due to an expensive
        # CWallet::TopUpKeyPool call, and the encryptwallet RPC made later in
        # the test often takes even longer.
        self.add_nodes(self.num_nodes, extra_args=self.extra_args, timewait=60)
        self.start_nodes()

    def run_test (self):
        wallet_unenc_dump = os.path.join(self.nodes[0].datadir, "wallet.unencrypted.dump")
        wallet_enc_dump = os.path.join(self.nodes[0].datadir, "wallet.encrypted.dump")

        # generate 20 addresses to compare against the dump
        test_addr_count = 20
        addrs = []
        for i in range(0,test_addr_count):
            addr = self.nodes[0].getnewaddress()
            vaddr= self.nodes[0].getaddressinfo(addr) #required to get hd keypath
            addrs.append(vaddr)
        # Should be a no-op:
        self.nodes[0].keypoolrefill()

        # Test scripts dump by adding a 1-of-1 multisig address
        multisig_addr = self.nodes[0].addmultisigaddress(1, [addrs[1]["address"]])["address"]
        script_addrs = [multisig_addr]

        # dump unencrypted wallet
        result = self.nodes[0].dumpwallet(wallet_unenc_dump)
        assert_equal(result['filename'], wallet_unenc_dump)

        found_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc = \
            read_dump(wallet_unenc_dump, addrs, script_addrs, None)
        assert_equal(found_addr, test_addr_count)  # all keys must be in the dump
        # This is 1, not 2 because we aren't testing for witness scripts
        assert_equal(found_script_addr, 1)  # all scripts must be in the dump
        assert_equal(found_addr_chg, 50)  # 50 blocks where mined
        assert_equal(found_addr_rsv, 180)  # keypool size (external+internal)

        #encrypt wallet, restart, unlock and dump
        self.nodes[0].encryptwallet('test')
        self.nodes[0].walletpassphrase('test', 30)
        # Should be a no-op:
        self.nodes[0].keypoolrefill()
        self.nodes[0].dumpwallet(wallet_enc_dump)

        found_addr, found_script_addr, found_addr_chg, found_addr_rsv, _ = \
            read_dump(wallet_enc_dump, addrs, script_addrs, hd_master_addr_unenc)
        assert_equal(found_addr, test_addr_count)
        # This is 1, not 2 because we aren't testing for witness scripts
        assert_equal(found_script_addr, 1)
        # TODO clarify if we want the behavior that is tested below in Dash (only when HD seed was generated and not user-provided)
        # assert_equal(found_addr_chg, 180 + 50)  # old reserve keys are marked as change now
        assert_equal(found_addr_rsv, 180)  # keypool size

        # Overwriting should fail
        assert_raises_rpc_error(-8, "already exists", lambda: self.nodes[0].dumpwallet(wallet_enc_dump))

        # Restart node with new wallet, and test importwallet
        self.stop_node(0)
        self.start_node(0, ['-wallet=w2'])

        # Make sure the address is not IsMine before import
        result = self.nodes[0].getaddressinfo(multisig_addr)
        assert(result['ismine'] == False)

        self.nodes[0].importwallet(wallet_unenc_dump)

        # Now check IsMine is true
        result = self.nodes[0].getaddressinfo(multisig_addr)
        assert(result['ismine'] == True)

if __name__ == '__main__':
    WalletDumpTest().main()