Host-customized fork of https://github.com/tecnovert/basicswap/
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2022 tecnovert
# Distributed under the MIT software license, see the accompanying
# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
from .btc import BTCInterface
from basicswap.chainparams import Coins
from basicswap.util.address import decodeAddress
from mnemonic import Mnemonic
from basicswap.contrib.test_framework.script import (
CScript,
OP_DUP, OP_HASH160, OP_EQUALVERIFY, OP_CHECKSIG
)
class DASHInterface(BTCInterface):
@staticmethod
def coin_type():
return Coins.DASH
def __init__(self, coin_settings, network, swap_client=None):
super().__init__(coin_settings, network, swap_client)
self._wallet_passphrase = ''
self._have_checked_seed = False
def seedToMnemonic(self, key):
return Mnemonic('english').to_mnemonic(key)
def initialiseWallet(self, key):
words = self.seedToMnemonic(key)
mnemonic_passphrase = ''
self.rpc_callback('upgradetohd', [words, mnemonic_passphrase, self._wallet_passphrase])
self._have_checked_seed = False
if self._wallet_passphrase != '':
self.unlockWallet(self._wallet_passphrase)
def decodeAddress(self, address):
return decodeAddress(address)[1:]
def checkExpectedSeed(self, key_hash):
try:
rv = self.rpc_callback('dumphdinfo')
entropy = Mnemonic('english').to_entropy(rv['mnemonic'].split(' '))
entropy_hash = self.getAddressHashFromKey(entropy)[::-1].hex()
self._have_checked_seed = True
return entropy_hash == key_hash
except Exception as e:
self._log.warning('checkExpectedSeed failed: {}'.format(str(e)))
return False
def withdrawCoin(self, value, addr_to, subfee):
params = [addr_to, value, '', '', subfee, False, False, self._conf_target]
return self.rpc_callback('sendtoaddress', params)
def getSpendableBalance(self) -> int:
return self.make_int(self.rpc_callback('getwalletinfo')['balance'])
def getScriptForPubkeyHash(self, pkh: bytes) -> bytearray:
# Return P2PKH
return CScript([OP_DUP, OP_HASH160, pkh, OP_EQUALVERIFY, OP_CHECKSIG])
def getBLockSpendTxFee(self, tx, fee_rate: int) -> int:
add_bytes = 107
size = len(tx.serialize_with_witness()) + add_bytes
pay_fee = int(fee_rate * size // 1000)
self._log.info(f'BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}.')
return pay_fee
def findTxnByHash(self, txid_hex: str):
# Only works for wallet txns
try:
rv = self.rpc_callback('gettransaction', [txid_hex])
except Exception as ex:
self._log.debug('findTxnByHash getrawtransaction failed: {}'.format(txid_hex))
return None
if 'confirmations' in rv and rv['confirmations'] >= self.blocks_confirmed:
block_height = self.getBlockHeader(rv['blockhash'])['height']
return {'txid': txid_hex, 'amount': 0, 'height': block_height}
return None
def unlockWallet(self, password: str):
super().unlockWallet(password)
# Store password for initialiseWallet
self._wallet_passphrase = password
if not self._have_checked_seed:
self._sc.checkWalletSeed(self.coin_type())
def lockWallet(self):
super().lockWallet()
self._wallet_passphrase = ''