Host-customized fork of https://github.com/tecnovert/basicswap/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
165 lines
6.6 KiB
165 lines
6.6 KiB
# -*- coding: utf-8 -*- |
|
|
|
# Copyright (c) 2020-2024 tecnovert |
|
# Distributed under the MIT software license, see the accompanying |
|
# file LICENSE or http://www.opensource.org/licenses/mit-license.php. |
|
|
|
from basicswap.util import ( |
|
ensure, |
|
) |
|
from basicswap.interface.base import Curves |
|
from basicswap.chainparams import ( |
|
Coins, |
|
) |
|
from basicswap.basicswap_util import ( |
|
KeyTypes, |
|
SwapTypes, |
|
EventLogTypes, |
|
) |
|
from . import ProtocolInterface |
|
from basicswap.contrib.test_framework.script import ( |
|
CScript, CScriptOp, |
|
OP_CHECKMULTISIG |
|
) |
|
|
|
|
|
def addLockRefundSigs(self, xmr_swap, ci): |
|
self.log.debug('Setting lock refund tx sigs') |
|
|
|
witness_stack = [] |
|
if ci.coin_type() not in (Coins.DCR, ): |
|
witness_stack += [b'', ] |
|
witness_stack += [ |
|
xmr_swap.al_lock_refund_tx_sig, |
|
xmr_swap.af_lock_refund_tx_sig, |
|
xmr_swap.a_lock_tx_script, |
|
] |
|
|
|
signed_tx = ci.setTxSignature(xmr_swap.a_lock_refund_tx, witness_stack) |
|
ensure(signed_tx, 'setTxSignature failed') |
|
xmr_swap.a_lock_refund_tx = signed_tx |
|
|
|
|
|
def recoverNoScriptTxnWithKey(self, bid_id: bytes, encoded_key): |
|
self.log.info('Manually recovering %s', bid_id.hex()) |
|
# Manually recover txn if other key is known |
|
session = self.openSession() |
|
try: |
|
bid, xmr_swap = self.getXmrBidFromSession(session, bid_id) |
|
ensure(bid, 'Bid not found: {}.'.format(bid_id.hex())) |
|
ensure(xmr_swap, 'Adaptor-sig swap not found: {}.'.format(bid_id.hex())) |
|
offer, xmr_offer = self.getXmrOfferFromSession(session, bid.offer_id, sent=False) |
|
ensure(offer, 'Offer not found: {}.'.format(bid.offer_id.hex())) |
|
ensure(xmr_offer, 'Adaptor-sig offer not found: {}.'.format(bid.offer_id.hex())) |
|
ci_to = self.ci(offer.coin_to) |
|
|
|
for_ed25519 = True if Coins(offer.coin_to) == Coins.XMR else False |
|
|
|
try: |
|
decoded_key_half = ci_to.decodeKey(encoded_key) |
|
except Exception as e: |
|
raise ValueError('Failed to decode provided key-half: ', str(e)) |
|
|
|
if bid.was_sent: |
|
kbsl = decoded_key_half |
|
kbsf = self.getPathKey(offer.coin_from, offer.coin_to, bid.created_at, xmr_swap.contract_count, KeyTypes.KBSF, for_ed25519) |
|
else: |
|
kbsl = self.getPathKey(offer.coin_from, offer.coin_to, bid.created_at, xmr_swap.contract_count, KeyTypes.KBSL, for_ed25519) |
|
kbsf = decoded_key_half |
|
ensure(ci_to.verifyKey(kbsl), 'Invalid kbsl') |
|
ensure(ci_to.verifyKey(kbsf), 'Invalid kbsf') |
|
vkbs = ci_to.sumKeys(kbsl, kbsf) |
|
|
|
if offer.coin_to == Coins.XMR: |
|
address_to = self.getCachedMainWalletAddress(ci_to) |
|
else: |
|
address_to = self.getCachedStealthAddressForCoin(offer.coin_to) |
|
|
|
amount = bid.amount_to |
|
lock_tx_vout = bid.getLockTXBVout() |
|
txid = ci_to.spendBLockTx(xmr_swap.b_lock_tx_id, address_to, xmr_swap.vkbv, vkbs, amount, xmr_offer.b_fee_rate, bid.chain_b_height_start, spend_actual_balance=True, lock_tx_vout=lock_tx_vout) |
|
self.log.debug('Submitted lock B spend txn %s to %s chain for bid %s', txid.hex(), ci_to.coin_name(), bid_id.hex()) |
|
self.logBidEvent(bid.bid_id, EventLogTypes.LOCK_TX_B_SPEND_TX_PUBLISHED, txid.hex(), session) |
|
session.commit() |
|
|
|
return txid |
|
finally: |
|
self.closeSession(session, commit=False) |
|
|
|
|
|
def getChainBSplitKey(swap_client, bid, xmr_swap, offer): |
|
reverse_bid: bool = offer.bid_reversed |
|
ci_follower = swap_client.ci(offer.coin_from if reverse_bid else offer.coin_to) |
|
|
|
key_type = KeyTypes.KBSF if bid.was_sent else KeyTypes.KBSL |
|
return ci_follower.encodeKey(swap_client.getPathKey(offer.coin_from, offer.coin_to, bid.created_at, xmr_swap.contract_count, key_type, True if ci_follower.coin_type() == Coins.XMR else False)) |
|
|
|
|
|
def getChainBRemoteSplitKey(swap_client, bid, xmr_swap, offer): |
|
reverse_bid: bool = offer.bid_reversed |
|
ci_leader = swap_client.ci(offer.coin_to if reverse_bid else offer.coin_from) |
|
ci_follower = swap_client.ci(offer.coin_from if reverse_bid else offer.coin_to) |
|
|
|
if bid.was_sent: |
|
if xmr_swap.a_lock_refund_spend_tx: |
|
af_lock_refund_spend_tx_sig = ci_leader.extractFollowerSig(xmr_swap.a_lock_refund_spend_tx) |
|
kbsl = ci_leader.recoverEncKey(xmr_swap.af_lock_refund_spend_tx_esig, af_lock_refund_spend_tx_sig, xmr_swap.pkasl) |
|
return ci_follower.encodeKey(kbsl) |
|
else: |
|
if xmr_swap.a_lock_spend_tx: |
|
al_lock_spend_tx_sig = ci_leader.extractLeaderSig(xmr_swap.a_lock_spend_tx) |
|
kbsf = ci_leader.recoverEncKey(xmr_swap.al_lock_spend_tx_esig, al_lock_spend_tx_sig, xmr_swap.pkasf) |
|
return ci_follower.encodeKey(kbsf) |
|
return None |
|
|
|
|
|
def setDLEAG(xmr_swap, ci_to, kbsf: bytes) -> None: |
|
if ci_to.curve_type() == Curves.ed25519: |
|
xmr_swap.kbsf_dleag = ci_to.proveDLEAG(kbsf) |
|
xmr_swap.pkasf = xmr_swap.kbsf_dleag[0: 33] |
|
elif ci_to.curve_type() == Curves.secp256k1: |
|
for i in range(10): |
|
xmr_swap.kbsf_dleag = ci_to.signRecoverable(kbsf, 'proof kbsf owned for swap') |
|
pk_recovered: bytes = ci_to.verifySigAndRecover(xmr_swap.kbsf_dleag, 'proof kbsf owned for swap') |
|
if pk_recovered == xmr_swap.pkbsf: |
|
break |
|
# self.log.debug('kbsl recovered pubkey mismatch, retrying.') |
|
assert (pk_recovered == xmr_swap.pkbsf) |
|
xmr_swap.pkasf = xmr_swap.pkbsf |
|
else: |
|
raise ValueError('Unknown curve') |
|
|
|
|
|
class XmrSwapInterface(ProtocolInterface): |
|
swap_type = SwapTypes.XMR_SWAP |
|
|
|
def genScriptLockTxScript(self, ci, Kal: bytes, Kaf: bytes) -> CScript: |
|
Kal_enc = Kal if len(Kal) == 33 else ci.encodePubkey(Kal) |
|
Kaf_enc = Kaf if len(Kaf) == 33 else ci.encodePubkey(Kaf) |
|
|
|
return CScript([2, Kal_enc, Kaf_enc, 2, CScriptOp(OP_CHECKMULTISIG)]) |
|
|
|
def getFundedInitiateTxTemplate(self, ci, amount: int, sub_fee: bool) -> bytes: |
|
addr_to = self.getMockAddrTo(ci) |
|
funded_tx = ci.createRawFundedTransaction(addr_to, amount, sub_fee, lock_unspents=False) |
|
|
|
return bytes.fromhex(funded_tx) |
|
|
|
def promoteMockTx(self, ci, mock_tx: bytes, script: bytearray) -> bytearray: |
|
mock_txo_script = self.getMockScriptScriptPubkey(ci) |
|
real_txo_script = ci.getScriptDest(script) |
|
|
|
found: int = 0 |
|
ctx = ci.loadTx(mock_tx) |
|
for txo in ctx.vout: |
|
if txo.scriptPubKey == mock_txo_script: |
|
txo.scriptPubKey = real_txo_script |
|
found += 1 |
|
|
|
if found < 1: |
|
raise ValueError('Mocked output not found') |
|
if found > 1: |
|
raise ValueError('Too many mocked outputs found') |
|
ctx.nLockTime = 0 |
|
|
|
return ctx.serialize()
|
|
|