text: #!/usr/bin/env python3
  # Copyright (c) 2016-2020 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 the dumpwallet RPC."""
  import datetime
  import os
  import time
  
  from test_framework.test_framework import SyscoinTestFramework
  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_comments = []
          found_legacy_addr = 0
          found_p2sh_segwit_addr = 0
          found_bech32_addr = 0
          found_script_addr = 0
          found_addr_chg = 0
          found_addr_rsv = 0
          hd_master_addr_ret = None
          for line in inputfile:
              line = line.strip()
              if not line:
                  continue
              if line[0] == '#':
                  found_comments.append(line)
              else:
                  # split out some data
                  key_date_label, comment = line.split("#")
                  key_date_label = key_date_label.split(" ")
                  # key = key_date_label[0]
                  date = key_date_label[1]
                  keytype = key_date_label[2]
  
                  imported_key = date == '1970-01-01T00:00:01Z'
                  if imported_key:
                      # Imported keys have multiple addresses, no label (keypath) and timestamp
                      # Skip them
                      continue
  
                  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.split(",")[0] and addrObj['hdkeypath'] == keypath and keytype == "label=":
                          if addr.startswith('m') or addr.startswith('n'):
                              # P2PKH address
                              found_legacy_addr += 1
                          elif addr.startswith('2'):
                              # P2SH-segwit address
                              found_p2sh_segwit_addr += 1
                          elif addr.startswith('bcrt1'):
                              found_bech32_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_comments, found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret
  
  
  class WalletDumpTest(SyscoinTestFramework):
      def set_test_params(self):
          self.num_nodes = 1
          self.extra_args = [["-keypool=90", "-addresstype=legacy"]]
          self.rpc_timeout = 120
  
      def skip_test_if_missing_module(self):
          self.skip_if_no_wallet()
  
      def setup_network(self):
          self.add_nodes(self.num_nodes, extra_args=self.extra_args)
          self.start_nodes()
  
      def run_test(self):
          self.nodes[0].createwallet("dump")
  
          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 30 addresses to compare against the dump
          # - 10 legacy P2PKH
          # - 10 P2SH-segwit
          # - 10 bech32
          test_addr_count = 10
          addrs = []
          for address_type in ['legacy', 'p2sh-segwit', 'bech32']:
              for _ in range(test_addr_count):
                  addr = self.nodes[0].getnewaddress(address_type=address_type)
                  vaddr = self.nodes[0].getaddressinfo(addr)  # required to get hd keypath
                  addrs.append(vaddr)
  
          # Test scripts dump by adding a 1-of-1 multisig address
          multisig_addr = self.nodes[0].addmultisigaddress(1, [addrs[1]["address"]])["address"]
  
          # Refill the keypool. getnewaddress() refills the keypool *before* taking a key from
          # the keypool, so the final call to getnewaddress leaves the keypool with one key below
          # its capacity
          self.nodes[0].keypoolrefill()
  
          self.log.info('Mine a block one second before the wallet is dumped')
          dump_time = int(time.time())
          self.nodes[0].setmocktime(dump_time - 1)
          self.nodes[0].generate(1)
          self.nodes[0].setmocktime(dump_time)
          dump_time_str = '# * Created on {}Z'.format(
              datetime.datetime.fromtimestamp(
                  dump_time,
                  tz=datetime.timezone.utc,
              ).replace(tzinfo=None).isoformat())
          dump_best_block_1 = '# * Best block at time of backup was {} ({}),'.format(
              self.nodes[0].getblockcount(),
              self.nodes[0].getbestblockhash(),
          )
          dump_best_block_2 = '#   mined on {}Z'.format(
              datetime.datetime.fromtimestamp(
                  dump_time - 1,
                  tz=datetime.timezone.utc,
              ).replace(tzinfo=None).isoformat())
  
          self.log.info('Dump unencrypted wallet')
          result = self.nodes[0].dumpwallet(wallet_unenc_dump)
          assert_equal(result['filename'], wallet_unenc_dump)
  
          found_comments, found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc = \
              read_dump(wallet_unenc_dump, addrs, [multisig_addr], None)
          assert '# End of dump' in found_comments  # Check that file is not corrupt
          assert_equal(dump_time_str, next(c for c in found_comments if c.startswith('# * Created on')))
          assert_equal(dump_best_block_1, next(c for c in found_comments if c.startswith('# * Best block')))
          assert_equal(dump_best_block_2, next(c for c in found_comments if c.startswith('#   mined on')))
          assert_equal(found_legacy_addr, test_addr_count)  # all keys must be in the dump
          assert_equal(found_p2sh_segwit_addr, test_addr_count)  # all keys must be in the dump
          assert_equal(found_bech32_addr, test_addr_count)  # all keys must be in the dump
          assert_equal(found_script_addr, 1)  # all scripts must be in the dump
          assert_equal(found_addr_chg, 0)  # 0 blocks where mined
          assert_equal(found_addr_rsv, 90 * 2)  # 90 keys plus 100% internal keys
  
          # encrypt wallet, restart, unlock and dump
          self.nodes[0].encryptwallet('test')
          self.nodes[0].walletpassphrase('test', 100)
          # Should be a no-op:
          self.nodes[0].keypoolrefill()
          self.nodes[0].dumpwallet(wallet_enc_dump)
  
          found_comments, found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, _ = \
              read_dump(wallet_enc_dump, addrs, [multisig_addr], hd_master_addr_unenc)
          assert '# End of dump' in found_comments  # Check that file is not corrupt
          assert_equal(dump_time_str, next(c for c in found_comments if c.startswith('# * Created on')))
          assert_equal(dump_best_block_1, next(c for c in found_comments if c.startswith('# * Best block')))
          assert_equal(dump_best_block_2, next(c for c in found_comments if c.startswith('#   mined on')))
          assert_equal(found_legacy_addr, test_addr_count)  # all keys must be in the dump
          assert_equal(found_p2sh_segwit_addr, test_addr_count)  # all keys must be in the dump
          assert_equal(found_bech32_addr, test_addr_count)  # all keys must be in the dump
          assert_equal(found_script_addr, 1)
          assert_equal(found_addr_chg, 90 * 2)  # old reserve keys are marked as change now
          assert_equal(found_addr_rsv, 90 * 2)
  
          # 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.restart_node(0)
          self.nodes[0].createwallet("w2")
  
          # Make sure the address is not IsMine before import
          result = self.nodes[0].getaddressinfo(multisig_addr)
          assert not result['ismine']
  
          self.nodes[0].importwallet(wallet_unenc_dump)
  
          # Now check IsMine is true
          result = self.nodes[0].getaddressinfo(multisig_addr)
          assert result['ismine']
  
          self.log.info('Check that wallet is flushed')
          with self.nodes[0].assert_debug_log(['Flushing wallet.dat'], timeout=20):
              self.nodes[0].getnewaddress()
  
  
  if __name__ == '__main__':
      WalletDumpTest().main()
  