mirror of
https://github.com/basicswap/basicswap.git
synced 2025-05-04 11:52:18 +00:00
228 lines
6.5 KiB
Python
228 lines
6.5 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright (c) 2024 tecnovert
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# Distributed under the MIT software license, see the accompanying
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# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
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import threading
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from enum import IntEnum
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from basicswap.chainparams import (
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chainparams,
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)
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from basicswap.util import (
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ensure,
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i2b,
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b2i,
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make_int,
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format_amount,
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TemporaryError,
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)
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from basicswap.util.crypto import (
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hash160,
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)
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from basicswap.util.ecc import (
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ep,
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getSecretInt,
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)
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from coincurve.dleag import verify_secp256k1_point
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from coincurve.keys import (
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PublicKey,
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)
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class Curves(IntEnum):
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secp256k1 = 1
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ed25519 = 2
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class CoinInterface:
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@staticmethod
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def watch_blocks_for_scripts() -> bool:
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return False
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@staticmethod
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def compareFeeRates(a, b) -> bool:
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return abs(a - b) < 20
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def __init__(self, network):
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self.setDefaults()
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self._network = network
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self._mx_wallet = threading.Lock()
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self._altruistic = True
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def setDefaults(self):
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self._unknown_wallet_seed = True
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self._restore_height = None
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def make_int(self, amount_in: int, r: int = 0) -> int:
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return make_int(amount_in, self.exp(), r=r)
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def format_amount(self, amount_in, conv_int=False, r=0):
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amount_int = make_int(amount_in, self.exp(), r=r) if conv_int else amount_in
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return format_amount(amount_int, self.exp())
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def coin_name(self) -> str:
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coin_chainparams = chainparams[self.coin_type()]
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if "display_name" in coin_chainparams:
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return coin_chainparams["display_name"]
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return coin_chainparams["name"].capitalize()
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def ticker(self) -> str:
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ticker = chainparams[self.coin_type()]["ticker"]
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if self._network == "testnet":
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ticker = "t" + ticker
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elif self._network == "regtest":
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ticker = "rt" + ticker
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return ticker
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def getExchangeTicker(self, exchange_name: str) -> str:
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return chainparams[self.coin_type()]["ticker"]
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def getExchangeName(self, exchange_name: str) -> str:
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return chainparams[self.coin_type()]["name"]
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def ticker_mainnet(self) -> str:
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ticker = chainparams[self.coin_type()]["ticker"]
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return ticker
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def min_amount(self) -> int:
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return chainparams[self.coin_type()][self._network]["min_amount"]
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def max_amount(self) -> int:
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return chainparams[self.coin_type()][self._network]["max_amount"]
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def setWalletSeedWarning(self, value: bool) -> None:
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self._unknown_wallet_seed = value
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def setWalletRestoreHeight(self, value: int) -> None:
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self._restore_height = value
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def knownWalletSeed(self) -> bool:
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return not self._unknown_wallet_seed
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def chainparams(self):
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return chainparams[self.coin_type()]
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def chainparams_network(self):
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return chainparams[self.coin_type()][self._network]
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def has_segwit(self) -> bool:
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return chainparams[self.coin_type()].get("has_segwit", True)
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def use_p2shp2wsh(self) -> bool:
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# p2sh-p2wsh
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return False
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def is_transient_error(self, ex) -> bool:
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if isinstance(ex, TemporaryError):
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return True
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str_error: str = str(ex).lower()
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if "not enough unlocked money" in str_error:
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return True
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if "no unlocked balance" in str_error:
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return True
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if "transaction was rejected by daemon" in str_error:
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return True
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if "invalid unlocked_balance" in str_error:
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return True
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if "daemon is busy" in str_error:
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return True
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if "timed out" in str_error:
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return True
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if "request-sent" in str_error:
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return True
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return False
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def setConfTarget(self, new_conf_target: int) -> None:
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ensure(
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new_conf_target >= 1 and new_conf_target < 33, "Invalid conf_target value"
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)
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self._conf_target = new_conf_target
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def walletRestoreHeight(self) -> int:
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return self._restore_height
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def get_connection_type(self):
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return self._connection_type
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def using_segwit(self) -> bool:
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# Using btc native segwit
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return self._use_segwit
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def use_tx_vsize(self) -> bool:
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return self._use_segwit
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def getLockTxSwapOutputValue(self, bid, xmr_swap) -> int:
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return bid.amount
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def getLockRefundTxSwapOutputValue(self, bid, xmr_swap) -> int:
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return xmr_swap.a_swap_refund_value
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def getLockRefundTxSwapOutput(self, xmr_swap) -> int:
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# Only one prevout exists
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return 0
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def checkWallets(self) -> int:
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return 1
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def altruistic(self) -> bool:
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return self._altruistic
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class AdaptorSigInterface:
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def getScriptLockTxDummyWitness(self, script: bytes):
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return [b"", bytes(72), bytes(72), bytes(len(script))]
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def getScriptLockRefundSpendTxDummyWitness(self, script: bytes):
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return [b"", bytes(72), bytes(72), bytes((1,)), bytes(len(script))]
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def getScriptLockRefundSwipeTxDummyWitness(self, script: bytes):
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return [bytes(72), b"", bytes(len(script))]
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class Secp256k1Interface(CoinInterface, AdaptorSigInterface):
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@staticmethod
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def curve_type():
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return Curves.secp256k1
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def getNewRandomKey(self) -> bytes:
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return i2b(getSecretInt())
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def getPubkey(self, privkey: bytes) -> bytes:
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return PublicKey.from_secret(privkey).format()
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def pkh(self, pubkey: bytes) -> bytes:
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return hash160(pubkey)
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def verifyKey(self, k: bytes) -> bool:
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i = b2i(k)
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return i < ep.o and i > 0
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def verifyPubkey(self, pubkey_bytes: bytes) -> bool:
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return verify_secp256k1_point(pubkey_bytes)
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def isValidAddressHash(self, address_hash: bytes) -> bool:
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hash_len = len(address_hash)
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if hash_len == 20:
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return True
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def isValidPubkey(self, pubkey: bytes) -> bool:
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try:
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self.verifyPubkey(pubkey)
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return True
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except Exception:
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return False
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def verifySig(self, pubkey: bytes, signed_hash: bytes, sig: bytes) -> bool:
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pubkey = PublicKey(pubkey)
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return pubkey.verify(sig, signed_hash, hasher=None)
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def sumKeys(self, ka: bytes, kb: bytes) -> bytes:
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# TODO: Add to coincurve
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return i2b((b2i(ka) + b2i(kb)) % ep.o)
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def sumPubkeys(self, Ka: bytes, Kb: bytes) -> bytes:
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return PublicKey.combine_keys([PublicKey(Ka), PublicKey(Kb)]).format()
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