def add_output(self,
serial_id: int,
script: str,
sats: int) -> None:
txout = CTxOut(sats, CScript(bytes.fromhex(script)))
self.outputs.append({'output': txout,
'serial_id': serial_id})
def add_witnesses(self,
witness_stack) -> str:
wits = []
for idx, _in in enumerate(self.inputs):
privkey = _in['privkey']
serial_id = _in['serial_id']
if privkey:
inkey = privkey_expand(privkey)
inkey_pub = coincurve.PublicKey.from_secret(inkey.secret)
address = P2WPKHBitcoinAddress.from_scriptPubKey(CScript([script.OP_0, Hash160(inkey_pub.format())]))
sighash = script.SignatureHash(address.to_redeemScript(),
self.tx, idx, script.SIGHASH_ALL,
amount=_in['sats'],
sigversion=script.SIGVERSION_WITNESS_V0)
sig = inkey.sign(sighash, hasher=None) + bytes([script.SIGHASH_ALL])
wits.append(CTxInWitness(CScriptWitness([sig, inkey_pub.format()])))
continue
# Every input from the witness stack will be the accepter's
# which is always an odd serial
assert(serial_id % 2 == 1)
elems = witness_stack.pop(0)['witness_element']
stack = []
for elem in elems:
stack.append(bytes.fromhex(elem['witness']))
wits.append(CTxInWitness(CScriptWitness(stack)))
self.tx.wit = CTxWitness(wits)
return self.tx.serialize().hex()
def create_trx(op_return_val, issuing_transaction_fee, issuing_address,
tx_outs, tx_inputs):
"""
:param op_return_val:
:param issuing_transaction_fee:
:param issuing_address:
:param tx_outs:
:param tx_input:
:return:
"""
cert_out = CMutableTxOut(0, CScript([OP_RETURN, op_return_val]))
tx_ins = []
value_in = 0
for tx_input in tx_inputs:
tx_ins.append(CTxIn(COutPoint(tx_input.tx_hash,
tx_input.tx_out_index)))
value_in += tx_input.coin_value
# send change back to our address
amount = value_in - issuing_transaction_fee
if amount > 0:
change_out = create_transaction_output(issuing_address, amount)
tx_outs = tx_outs + [change_out]
tx_outs = tx_outs + [cert_out]
transaction = CMutableTransaction(tx_ins, tx_outs)
return transaction
def from_utxo(txid_in: str,
tx_index_in: int,
sats: int,
privkey: str,
fee: int,
local_node_privkey: str,
local_funding_privkey: str,
remote_node_privkey: str,
remote_funding_privkey: str,
chain_hash: str = regtest_hash) -> Tuple['Funding', str]:
"""Make a funding transaction by spending this utxo using privkey: return Funding, tx."""
# Create dummy one to start: we will fill in txid at the end.
funding = Funding('', 0, sats - fee, local_node_privkey,
local_funding_privkey, remote_node_privkey,
remote_funding_privkey, chain_hash)
# input private key.
inkey = privkey_expand(privkey)
inkey_pub = coincurve.PublicKey.from_secret(inkey.secret)
txin = CTxIn(COutPoint(bytes.fromhex(txid_in), tx_index_in))
txout = CTxOut(
sats - fee,
CScript([script.OP_0,
sha256(funding.redeemscript()).digest()]))
tx = CMutableTransaction([txin], [txout])
# now fill in funding txid.
funding.txid = tx.GetTxid().hex()
# while we're here, sign the transaction.
address = P2WPKHBitcoinAddress.from_scriptPubKey(
CScript([script.OP_0, Hash160(inkey_pub.format())]))
sighash = script.SignatureHash(address.to_redeemScript(),
tx,
0,
script.SIGHASH_ALL,
amount=sats,
sigversion=script.SIGVERSION_WITNESS_V0)
sig = inkey.sign(sighash, hasher=None) + bytes([script.SIGHASH_ALL])
tx.wit = CTxWitness(
[CTxInWitness(CScriptWitness([sig, inkey_pub.format()]))])
return funding, tx.serialize().hex()
def mock_listunspent(self, addrs):
output1 = {'outpoint': COutPoint(lx('34eb81bc0d1a822369f75174fd4916b1ec490d8fbcba33168e820cc78a52f608'), 0),
'confirmations': 62952, 'address': P2PKHBitcoinAddress('mz7poFND7hVGRtPWjiZizcCnjf6wEDWjjT'),
'spendable': False, 'amount': 49000000, 'solvable': False, 'scriptPubKey': CScript(
[OP_DUP, OP_HASH160, x('cc0a909c4c83068be8b45d69b60a6f09c2be0fda'), OP_EQUALVERIFY, OP_CHECKSIG]),
'account': ''}
output2 = {'address': P2PKHBitcoinAddress('mz7poFND7hVGRtPWjiZizcCnjf6wEDWjjT'), 'amount': 2750, 'account': '',
'spendable': False, 'solvable': False, 'confirmations': 62932,
'outpoint': COutPoint(lx('6773785b4dc5d2cced67d26fc0820329307a8e10dfaef50d506924984387bf0b'), 1),
'scriptPubKey': CScript(
[OP_DUP, OP_HASH160, x('cc0a909c4c83068be8b45d69b60a6f09c2be0fda'), OP_EQUALVERIFY,
OP_CHECKSIG])}
output3 = {'address': P2PKHBitcoinAddress('mz7poFND7hVGRtPWjiZizcCnjf6wEDWjjT'), 'amount': 2750, 'account': '',
'spendable': False, 'solvable': False, 'confirmations': 62932,
'outpoint': COutPoint(lx('6773785b4dc5d2cced67d26fc0820329307a8e10dfaef50d506924984387bf0b'), 5),
'scriptPubKey': CScript(
[OP_DUP, OP_HASH160, x('cc0a909c4c83068be8b45d69b60a6f09c2be0fda'), OP_EQUALVERIFY,
OP_CHECKSIG])}
unspent_outputs = [output1, output2, output3]
return unspent_outputs
def forge_prevtx(
vouts: Sequence[Tuple[str, int]],
network: str = "mainnet") -> Tuple[bytes, messages.TransactionType]:
"""
Forge a transaction with the given vouts.
"""
bitcoin.SelectParams(network)
input = messages.TxInputType(
prev_hash=b"\x00" * 32,
prev_index=0xFFFFFFFF,
script_sig=b"\x00",
sequence=0xFFFFFFFF,
)
outputs = [
messages.TxOutputBinType(
amount=amount,
script_pubkey=bytes(CBitcoinAddress(address).to_scriptPubKey()),
) for address, amount in vouts
]
tx = messages.TransactionType(
version=1,
inputs=[input],
bin_outputs=outputs,
lock_time=0,
)
cin = CTxIn(
COutPoint(input.prev_hash, input.prev_index),
CScript(input.script_sig),
input.sequence,
)
couts = [
CTxOut(output.amount, CScript(output.script_pubkey))
for output in tx.bin_outputs
]
txhash = CTransaction([cin], couts, tx.lock_time,
tx.version).GetTxid()[::-1]
bitcoin.SelectParams("mainnet")
return txhash, tx
def get_unspent_outputs(self, address):
unspent_outputs = []
# this calls a different api not accessible through localhost proxy
unspent_url = 'https://blockchain.info/unspent?active=%s&format=json' % address
unspent_response = try_get(unspent_url)
r = unspent_response.json()
for u in r['unspent_outputs']:
tx_out = TransactionOutput(
COutPoint(unhexlify(u['tx_hash']), u['tx_output_n']),
CBitcoinAddress(address), CScript(unhexlify(u['script'])),
int(u['value']))
unspent_outputs.append(tx_out)
return unspent_outputs
def create_trx(op_return_val, issuing_transaction_cost,
issuing_address, txouts, tx_input):
cert_out = CMutableTxOut(0, CScript([OP_RETURN, op_return_val]))
txins = [CTxIn(tx_input.outpoint)]
value_in = tx_input.amount
# send change back to our address
amount = value_in - issuing_transaction_cost.total
if amount > 0:
change_out = create_transaction_output(issuing_address, amount)
txouts = txouts + [change_out]
txouts = txouts + [cert_out]
tx = CMutableTransaction(txins, txouts)
return tx
def _build_certificate_transactions(wallet, issuing_address,
revocation_address, certificate_metadata,
fees, tail):
"""Make transactions for the certificates.
"""
logging.info('Creating tx of certificate for recipient uid: %s ...',
certificate_metadata.uid)
with open(certificate_metadata.certificate_hash_file_name,
'rb') as in_file:
# this is the recipient-specific hash that will be recorded on the
# blockchain
hashed_certificate = in_file.read()
cert_out = CMutableTxOut(0, CScript([OP_RETURN, hashed_certificate]))
# send a transaction to the recipient's public key, and to a revocation
# address
txouts = create_recipient_outputs(certificate_metadata.pubkey,
revocation_address,
fees.min_per_output)
# define transaction inputs
unspent_outputs = wallet.get_unspent_outputs(issuing_address)
last_input = unspent_outputs[tail]
txins = [CTxIn(last_input.outpoint)]
value_in = last_input.amount
# very important! If we don't send the excess change back to ourselves,
# some lucky miner gets it!
amount = value_in - fees.cost_per_transaction
if amount > 0:
change_out = create_transaction_output(issuing_address, amount)
txouts = txouts + [change_out]
txouts = txouts + [cert_out]
tx = CMutableTransaction(txins, txouts)
# this is the transaction for a recipient, unsigned
hextx = hexlify(tx.serialize())
with open(certificate_metadata.unsigned_tx_file_name,
'wb') as out_file:
out_file.write(bytes(hextx, 'utf-8'))
logging.info('Created unsigned tx for recipient; last_input=%s',
last_input)
return last_input
def add_input_output(bitcoind, tx):
"""Add an input and an output to a CMutableTransaction, SIGHASH_ALL."""
# First we get some coins
privkey = CKey(os.urandom(32))
scriptPubKey = CScript([OP_0, Hash160(privkey.pub)])
address = CBitcoinAddress.from_scriptPubKey(scriptPubKey)
amount = Decimal("50") * Decimal(COIN) - Decimal("500")
# This creates a one-output transaction
txid = bitcoind.pay_to(str(address), amount / Decimal(COIN))
# We bump the fees by 5000
tx.vout.append(CTxOut(amount - Decimal("5000"), scriptPubKey))
tx.vin.append(CTxIn(COutPoint(lx(txid), 0)))
# Sign the new output with ALL
tx_hash = SignatureHash(address.to_redeemScript(), tx, 1, SIGHASH_ALL,
int(amount), SIGVERSION_WITNESS_V0)
sig = privkey.sign(tx_hash) + bytes([SIGHASH_ALL])
tx.wit.vtxinwit.append(CTxInWitness(CScriptWitness([sig, privkey.pub])))
def add_input_output(bitcoind, tx, coin, fees):
"""Add another input to the transaction to bump the feerate."""
coin_amount = Decimal(coin["amount"]) * Decimal(COIN)
# First get the private key from bitcoind's wallet.
privkey = CKey(wif_decode(bitcoind.dumpprivkey(coin["address"])))
# Add the fetched coin as a new input.
tx.vin.append(CTxIn(COutPoint(lx(coin["txid"]), coin["vout"])))
# And likely add an output, otherwise all goes to the fees.
scriptPubKey = CScript([OP_0, Hash160(privkey.pub)])
if coin_amount > fees + 294:
# For simplicity, pay to the same script
tx.vout.append(CTxOut(coin_amount - Decimal(fees), scriptPubKey))
address = CBitcoinAddress.from_scriptPubKey(scriptPubKey)
# We only do this once, sign it with ALL
tx_hash = SignatureHash(address.to_redeemScript(), tx, 1, SIGHASH_ALL,
int(coin_amount), SIGVERSION_WITNESS_V0)
sig = privkey.sign(tx_hash) + bytes([SIGHASH_ALL])
tx.wit.vtxinwit.append(
CTxInWitness(CScriptWitness([sig, privkey.pub]))
)
return tx
def close_tx(self, fee: int, privkey_dest: str) -> str:
"""Create a (mutual) close tx"""
txin = CTxIn(COutPoint(bytes.fromhex(self.txid), self.output_index))
out_privkey = privkey_expand(privkey_dest)
txout = CTxOut(
self.amount - fee,
CScript([
script.OP_0,
Hash160(
coincurve.PublicKey.from_secret(
out_privkey.secret).format())
]))
tx = CMutableTransaction(vin=[txin], vout=[txout])
sighash = script.SignatureHash(self.redeemscript(),
tx,
inIdx=0,
hashtype=script.SIGHASH_ALL,
amount=self.amount,
sigversion=script.SIGVERSION_WITNESS_V0)
sigs = [
key.sign(sighash, hasher=None)
for key in self.funding_privkeys_for_tx()
]
# BOLT #3:
# ## Closing Transaction
# ...
# * `txin[0]` witness: `0 <signature_for_pubkey1> <signature_for_pubkey2>`
witness = CScriptWitness([
bytes(), sigs[0] + bytes([script.SIGHASH_ALL]),
sigs[1] + bytes([script.SIGHASH_ALL]),
self.redeemscript()
])
tx.wit = CTxWitness([CTxInWitness(witness)])
return tx.serialize().hex()
def transfer(self,
src_addrs_key_map: OrderedDict,
dst_addrs_amount_map: dict,
txfee: Decimal,
auto_calc_pay_back: bool,
pay_back_index: int = 0xfffffff,
ensure_one_txout: bool = False) -> str:
"""
:param src_addrs_key_map: {'addr1': 'privkey1', 'addr2': 'privkey2' } 私钥为 hex字符串
:param dst_addrs_amount_map: {'addr1':Decimal(0.1234), 'addr2':Deciaml(0.234) }
:param txfee: 矿工费
:param auto_calc_pay_back: 是否自动计算并找零
:param pay_back_index: 找零地址索引 即在 src_addrs_key_map 中的索引
:param ensure_one_txout: 确认只有一个交易输出(比如: 提币不需要找零的情况, 归集)
:return: txid
"""
#仅支持 P2PKH 类型的from地址
assert isinstance(src_addrs_key_map,
OrderedDict), 'src_addrs_key_map is not OrderedDict'
assert isinstance(dst_addrs_amount_map,
dict), 'dst_addrs_amount_map is not dict'
assert Decimal('0.00001') <= txfee <= Decimal(
'0.001'), 'invalid txfee, please check txfee'
assert len(
src_addrs_key_map) >= 1, 'src_addrs_key_map length must >= 1'
assert not (True == auto_calc_pay_back == ensure_one_txout) , \
'True == auto_calc_pay_back == ensure_one_txout , must be mutex '
if ensure_one_txout:
assert (len(dst_addrs_amount_map) == 1
), 'dst_addrs_amount_map length must equal 1'
elif not auto_calc_pay_back:
assert (len(dst_addrs_amount_map) >=
1), 'dst_addrs_amount_map length must >= 2'
if auto_calc_pay_back and pay_back_index >= len(src_addrs_key_map):
raise Exception('pay_back_index is to large')
self.logger.info(
f'dst_addrs_amount_map is { json.dumps(dst_addrs_amount_map, indent=4, default=decimal_default) }'
)
assert self.ping() == True, 'bitcoind rpc is gone'
total_amount = sum(dst_addrs_amount_map.values()) + txfee
self.logger.info(f'total_amount is {total_amount}')
source_addrs = list(src_addrs_key_map.keys()) #WARNING: 禁止打印私钥!!!
is_enough, founded_utxos = self.search_utxo(addrs=source_addrs,
total_amount=total_amount)
if not is_enough:
msg = 'balance is not enough'
self.logger.error(msg)
raise Exception(msg)
self.logger.info(
f'founded_utxos is { json.dumps(founded_utxos, indent=4, default=decimal_default) }'
)
#设置全局变量
SelectParams(self.net_type)
#构造inputs
txins = []
utxo_owner_map = dict()
for addr, utxos in founded_utxos.items():
assert addr in src_addrs_key_map, 'addr is not in src_addrs_key_map'
for utxo in utxos:
txin = CMutableTxIn(
prevout=COutPoint(hash=lx(utxo['txid']), n=utxo['vout']))
txins.append(txin)
#因为顺序不会被打乱, 所以可以直接使用 索引进行对应
utxo_owner_map[len(txins) - 1] = addr
#构造outputs
txouts = []
for to_addr, amount in dst_addrs_amount_map.items():
out = CMutableTxOut(
nValue=amount * COIN,
scriptPubKey=CBitcoinAddress(to_addr).to_scriptPubKey())
txouts.append(out)
#自动结算
if auto_calc_pay_back:
sum_in_satoshi = 0
for addr, utxos in founded_utxos.items():
for utxo in utxos:
sum_in_satoshi += utxo['value']
pay_back_in_satoshi = int(sum_in_satoshi -
int(total_amount * COIN))
#判断找零的金额, 如果太小就不要了, 作为矿工费
if pay_back_in_satoshi >= MIN_AVAILABLE_UTXO_VALUE_IN_SATOSHI:
pay_back_addr = list(src_addrs_key_map.keys())[pay_back_index]
pay_back_out = CMutableTxOut(
nValue=pay_back_in_satoshi,
scriptPubKey=CBitcoinAddress(
pay_back_addr).to_scriptPubKey())
txouts.append(pay_back_out)
muttx = CMutableTransaction(vin=txins, vout=txouts)
#对每个 input 进行签名
for n in range(len(txins)):
#查找这个utxo属于哪个地址
owner_addr = utxo_owner_map[n]
privkey = src_addrs_key_map[owner_addr]
if len(privkey) == 64: # hex
wif_key = PrivKeyToWIFCompress(privkey,
self.net_type != 'mainnet')
seckey = CBitcoinSecret(s=wif_key)
elif len(privkey) == 52: #base58格式
seckey = CBitcoinSecret(s=privkey)
else:
raise Exception("invalid privkey")
txin_script_pubkey = CScript([
OP_DUP, OP_HASH160,
Hash160(seckey.pub), OP_EQUALVERIFY, OP_CHECKSIG
])
sig_hash = SignatureHash(txin_script_pubkey, muttx, n, SIGHASH_ALL)
sig = seckey.sign(sig_hash) + bytes([SIGHASH_ALL])
muttx.vin[n].scriptSig = CScript([sig, seckey.pub])
#TODO: 处理验签失败抛异常
VerifyScript(muttx.vin[n].scriptSig, txin_script_pubkey, muttx, n,
(SCRIPT_VERIFY_P2SH, ))
pass
raw_tx_hex = b2x(muttx.serialize())
self.logger.info(f'raw_tx_hex is: {raw_tx_hex}')
# local_tx_hash = muttx.GetTxid()
# self.logger.info(f'local_tx_hash is: {b2x(local_tx_hash)}')
#广播交易
assert self.ping(
) == True, 'bitcoind rpc is gone' #测试 bitcoind的 rpc服务是否还在
txid = self.send_raw_tx(raw_tx_hex=raw_tx_hex)
self.logger.info(f'send_raw_tx txid is: {txid}')
return txid
for x in hashes_missing_in_genesis_block:
if missing_addresses[x] in ignore_because_refunded:
continue
print " ->",x," height:" + str(missing_heights[x]) + " XEL:" + amtamt(missing_heights[x],float(missing_amounts_per_address[missing_addresses[x]])) + " [" + missing_addresses[x] + "] =",missing_amounts_per_address[missing_addresses[x]],"BTC in total (dont count addrs twice)"
print "\n\nNow, Handing the Abnormal ..."
# Now handling the abnormals
abnormal_add_map = {}
btc_abnormal = 0
for x in abnormal:
btc_abnormal += float(x["btc_amount"])
scr = CScript(hash_to_script[x["btc_tx"]].decode("hex"))
reas=""
for kk in iter(scr):
reas = kk
scr2 = CScript(reas)
reas=""
want = 0
have = 0
cnt=0
for kk in iter(scr2):
if cnt==0:
want=kk
else:
if len(str(kk))>30:
reas += str(P2PKHBitcoinAddress.from_pubkey(kk)) + "-"
else:
def locking_script_keys(key_one: coincurve.PublicKey, key_two: coincurve.PublicKey) -> CScript:
return CScript([script.OP_0, sha256(Funding.redeemscript_keys(key_one, key_two)).digest()])
def redeemscript_keys(key_one: coincurve.PublicKey, key_two: coincurve.PublicKey) -> CScript:
return CScript([script.OP_2]
+ [k.format() for k in Funding.sort_by_keys(key_one, key_two, key_one, key_two)]
+ [script.OP_2,
script.OP_CHECKMULTISIG])
def create_raw_velvet_tx(payload_buf):
VELVET_FORK_MARKER = b'interlink'
digest_outs = [CMutableTxOut(0, CScript([OP_RETURN, VELVET_FORK_MARKER, payload_buf]))]
tx = CMutableTransaction([], digest_outs)
return tx.serialize().hex()
def __init__(self, raw_hex):
self._hex = raw_hex
self._script = CScript(self._hex)
self._operations = None
def redeemscript(self) -> CScript:
return CScript([script.OP_2] +
[k.format() for k in self.funding_pubkeys_for_tx()] +
[script.OP_2, script.OP_CHECKMULTISIG])