def createmultisig(self, num, pubkeys):
"""Create multisig address"""
assert isinstance(pubkeys, list), (type(num), type(pubkeys))
redeem_script = transaction.multisig_script(pubkeys, num)
address = bitcoin.hash160_to_p2sh(hash_160(
redeem_script.decode('hex')))
return {'address': address, 'redeemScript': redeem_script}
def get_address_from_output_script(bytes):
decoded = [ x for x in script_GetOp(bytes) ]
# The Genesis Block, self-payments, and pay-by-IP-address payments look like:
# 65 BYTES:... CHECKSIG
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG ]
if match_decoded(decoded, match):
return TYPE_PUBKEY, decoded[0][1].encode('hex')
# Pay-by-Bitcoin-address TxOuts look like:
# DUP HASH160 20 BYTES:... EQUALVERIFY CHECKSIG
match = [ opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG ]
if match_decoded(decoded, match):
return TYPE_ADDRESS, hash160_to_p2pkh(decoded[2][1])
# p2sh
match = [ opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUAL ]
if match_decoded(decoded, match):
return TYPE_ADDRESS, hash160_to_p2sh(decoded[1][1])
return TYPE_SCRIPT, bytes
def get_address_from_output_script(bytes):
decoded = [ x for x in script_GetOp(bytes) ]
# The Genesis Block, self-payments, and pay-by-IP-address payments look like:
# 65 BYTES:... CHECKSIG
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG ]
if match_decoded(decoded, match):
return TYPE_PUBKEY, decoded[0][1].encode('hex')
# Pay-by-Bitcoin-address TxOuts look like:
# DUP HASH160 20 BYTES:... EQUALVERIFY CHECKSIG
match = [ opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG ]
if match_decoded(decoded, match):
return TYPE_ADDRESS, hash160_to_p2pkh(decoded[2][1])
# p2sh
match = [ opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUAL ]
if match_decoded(decoded, match):
return TYPE_ADDRESS, hash160_to_p2sh(decoded[1][1])
return TYPE_SCRIPT, bytes
def parse_scriptSig(d, bytes):
try:
decoded = [x for x in script_GetOp(bytes)]
except Exception:
# coinbase transactions raise an exception
print_error("cannot find address in input script", bytes.encode('hex'))
return
match = [opcodes.OP_PUSHDATA4]
if match_decoded(decoded, match):
item = decoded[0][1]
if item[0] == chr(0):
redeemScript = item.encode('hex')
d['address'] = bitcoin.hash160_to_p2sh(
bitcoin.hash_160(redeemScript.decode('hex')))
d['type'] = 'p2wpkh-p2sh'
d['redeemScript'] = redeemScript
d['x_pubkeys'] = ["(witness)"]
d['pubkeys'] = ["(witness)"]
d['signatures'] = ['(witness)']
d['num_sig'] = 1
else:
# payto_pubkey
d['type'] = 'p2pk'
d['address'] = "(pubkey)"
d['signatures'] = [item.encode('hex')]
d['num_sig'] = 1
d['x_pubkeys'] = ["(pubkey)"]
d['pubkeys'] = ["(pubkey)"]
return
# non-generated TxIn transactions push a signature
# (seventy-something bytes) and then their public key
# (65 bytes) onto the stack:
match = [opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4]
if match_decoded(decoded, match):
sig = decoded[0][1].encode('hex')
x_pubkey = decoded[1][1].encode('hex')
try:
signatures = parse_sig([sig])
pubkey, address = xpubkey_to_address(x_pubkey)
except BaseException:
print_error("cannot find address in input script",
bytes.encode('hex'))
return
d['type'] = 'p2pkh'
d['signatures'] = signatures
d['x_pubkeys'] = [x_pubkey]
d['num_sig'] = 1
d['pubkeys'] = [pubkey]
d['address'] = address
return
# p2sh transaction, m of n
match = [opcodes.OP_0] + [opcodes.OP_PUSHDATA4] * (len(decoded) - 1)
if not match_decoded(decoded, match):
print_error("cannot find address in input script", bytes.encode('hex'))
return
x_sig = [x[1].encode('hex') for x in decoded[1:-1]]
dec2 = [x for x in script_GetOp(decoded[-1][1])]
m = dec2[0][0] - opcodes.OP_1 + 1
n = dec2[-2][0] - opcodes.OP_1 + 1
op_m = opcodes.OP_1 + m - 1
op_n = opcodes.OP_1 + n - 1
match_multisig = [op_m] + [opcodes.OP_PUSHDATA4] * n + [
op_n, opcodes.OP_CHECKMULTISIG
]
if not match_decoded(dec2, match_multisig):
print_error("cannot find address in input script", bytes.encode('hex'))
return
x_pubkeys = map(lambda x: x[1].encode('hex'), dec2[1:-2])
pubkeys = [safe_parse_pubkey(x) for x in x_pubkeys]
redeemScript = multisig_script(pubkeys, m)
# write result in d
d['type'] = 'p2sh'
d['num_sig'] = m
d['signatures'] = parse_sig(x_sig)
d['x_pubkeys'] = x_pubkeys
d['pubkeys'] = pubkeys
d['redeemScript'] = redeemScript
d['address'] = hash160_to_p2sh(hash_160(redeemScript.decode('hex')))
def createmultisig(self, num, pubkeys):
"""Create multisig address"""
assert isinstance(pubkeys, list), (type(num), type(pubkeys))
redeem_script = transaction.multisig_script(pubkeys, num)
address = bitcoin.hash160_to_p2sh(hash_160(redeem_script.decode('hex')))
return {'address':address, 'redeemScript':redeem_script}
def parse_scriptSig(d, _bytes):
try:
decoded = [ x for x in script_GetOp(_bytes) ]
except Exception as e:
# coinbase transactions raise an exception
print_error("parse_scriptSig: cannot find address in input script (coinbase?)",
bh2u(_bytes))
return
match = [ opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
item = decoded[0][1]
if item[0] == 0:
# segwit embedded into p2sh
# witness version 0
d['address'] = bitcoin.hash160_to_p2sh(bitcoin.hash_160(item))
if len(item) == 22:
d['type'] = 'p2wpkh-p2sh'
elif len(item) == 34:
d['type'] = 'p2wsh-p2sh'
else:
print_error("unrecognized txin type", bh2u(item))
elif opcodes.OP_1 <= item[0] <= opcodes.OP_16:
# segwit embedded into p2sh
# witness version 1-16
pass
else:
# assert item[0] == 0x30
# pay-to-pubkey
d['type'] = 'p2pk'
d['address'] = "(pubkey)"
d['signatures'] = [bh2u(item)]
d['num_sig'] = 1
d['x_pubkeys'] = ["(pubkey)"]
d['pubkeys'] = ["(pubkey)"]
return
# p2pkh TxIn transactions push a signature
# (71-73 bytes) and then their public key
# (33 or 65 bytes) onto the stack:
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
sig = bh2u(decoded[0][1])
x_pubkey = bh2u(decoded[1][1])
try:
signatures = parse_sig([sig])
pubkey, address = xpubkey_to_address(x_pubkey)
except:
print_error("parse_scriptSig: cannot find address in input script (p2pkh?)",
bh2u(_bytes))
return
d['type'] = 'p2pkh'
d['signatures'] = signatures
d['x_pubkeys'] = [x_pubkey]
d['num_sig'] = 1
d['pubkeys'] = [pubkey]
d['address'] = address
return
# p2sh transaction, m of n
match = [ opcodes.OP_0 ] + [ opcodes.OP_PUSHDATA4 ] * (len(decoded) - 1)
if match_decoded(decoded, match):
x_sig = [bh2u(x[1]) for x in decoded[1:-1]]
redeem_script_unsanitized = decoded[-1][1] # for partial multisig txn, this has x_pubkeys
try:
m, n, x_pubkeys, pubkeys, redeem_script = parse_redeemScript_multisig(redeem_script_unsanitized)
except NotRecognizedRedeemScript:
print_error("parse_scriptSig: cannot find address in input script (p2sh?)",
bh2u(_bytes))
# we could still guess:
# d['address'] = hash160_to_p2sh(hash_160(decoded[-1][1]))
return
# write result in d
d['type'] = 'p2sh'
d['num_sig'] = m
d['signatures'] = parse_sig(x_sig)
d['x_pubkeys'] = x_pubkeys
d['pubkeys'] = pubkeys
d['redeem_script'] = redeem_script
d['address'] = hash160_to_p2sh(hash_160(bfh(redeem_script)))
return
print_error("parse_scriptSig: cannot find address in input script (unknown)",
bh2u(_bytes))
def parse_scriptSig(d, bytes):
try:
decoded = [ x for x in script_GetOp(bytes) ]
except Exception:
# coinbase transactions raise an exception
print_error("cannot find address in input script", bytes.encode('hex'))
return
# payto_pubkey
match = [ opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
sig = decoded[0][1].encode('hex')
d['address'] = "(pubkey)"
d['signatures'] = [sig]
d['num_sig'] = 1
d['x_pubkeys'] = ["(pubkey)"]
d['pubkeys'] = ["(pubkey)"]
return
# non-generated TxIn transactions push a signature
# (seventy-something bytes) and then their public key
# (65 bytes) onto the stack:
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
sig = decoded[0][1].encode('hex')
x_pubkey = decoded[1][1].encode('hex')
try:
signatures = parse_sig([sig])
pubkey, address = xpubkey_to_address(x_pubkey)
except:
import traceback
traceback.print_exc(file=sys.stdout)
print_error("cannot find address in input script", bytes.encode('hex'))
return
d['signatures'] = signatures
d['x_pubkeys'] = [x_pubkey]
d['num_sig'] = 1
d['pubkeys'] = [pubkey]
d['address'] = address
return
# p2sh transaction, m of n
match = [ opcodes.OP_0 ] + [ opcodes.OP_PUSHDATA4 ] * (len(decoded) - 1)
if not match_decoded(decoded, match):
print_error("cannot find address in input script", bytes.encode('hex'))
return
x_sig = [x[1].encode('hex') for x in decoded[1:-1]]
dec2 = [ x for x in script_GetOp(decoded[-1][1]) ]
m = dec2[0][0] - opcodes.OP_1 + 1
n = dec2[-2][0] - opcodes.OP_1 + 1
op_m = opcodes.OP_1 + m - 1
op_n = opcodes.OP_1 + n - 1
match_multisig = [ op_m ] + [opcodes.OP_PUSHDATA4]*n + [ op_n, opcodes.OP_CHECKMULTISIG ]
if not match_decoded(dec2, match_multisig):
print_error("cannot find address in input script", bytes.encode('hex'))
return
x_pubkeys = map(lambda x: x[1].encode('hex'), dec2[1:-2])
pubkeys = [xpubkey_to_address(x)[0] for x in x_pubkeys]
redeemScript = Transaction.multisig_script(pubkeys, m)
# write result in d
d['num_sig'] = m
d['signatures'] = parse_sig(x_sig)
d['x_pubkeys'] = x_pubkeys
d['pubkeys'] = pubkeys
d['redeemScript'] = redeemScript
d['address'] = hash160_to_p2sh(hash_160(redeemScript.decode('hex')))
