def pubkeyhash_to_pubkey(pubkeyhash, provided_pubkeys=None):
# Search provided pubkeys.
if provided_pubkeys:
if type(provided_pubkeys) != list:
provided_pubkeys = [provided_pubkeys]
for pubkey in provided_pubkeys:
if pubkeyhash == script.pubkey_to_pubkeyhash(util.unhexlify(pubkey)):
return pubkey
# Search blockchain.
raw_transactions = searchrawtransactions(pubkeyhash, unconfirmed=True)
for tx in raw_transactions:
for vin in tx['vin']:
if 'coinbase' not in vin:
scriptsig = vin['scriptSig']
asm = scriptsig['asm'].split(' ')
if len(asm) >= 2:
# catch unhexlify errs for when asm[1] isn't a pubkey (eg; for P2SH)
try:
pubkey = asm[1]
if pubkeyhash == script.pubkey_to_pubkeyhash(util.unhexlify(pubkey)):
return pubkey
except binascii.Error:
pass
raise UnknownPubKeyError('Public key was neither provided nor published in blockchain.')
def pubkeyhash_to_pubkey(pubkeyhash, provided_pubkeys=None):
# Search provided pubkeys.
if provided_pubkeys:
if type(provided_pubkeys) != list:
provided_pubkeys = [provided_pubkeys]
for pubkey in provided_pubkeys:
if pubkeyhash == script.pubkey_to_pubkeyhash(
util.unhexlify(pubkey)):
return pubkey
# Search blockchain.
raw_transactions = search_raw_transactions(pubkeyhash, unconfirmed=True)
for tx in raw_transactions:
for vin in tx['vin']:
if 'coinbase' not in vin:
scriptsig = vin['scriptSig']
asm = scriptsig['asm'].split(' ')
if len(asm) >= 2:
# catch unhexlify errs for when asm[1] isn't a pubkey (eg; for P2SH)
try:
pubkey = asm[1]
if pubkeyhash == script.pubkey_to_pubkeyhash(
util.unhexlify(pubkey)):
return pubkey
except binascii.Error:
pass
raise UnknownPubKeyError(
'Public key was neither provided nor published in blockchain.')
def decode_data_redeem_script(redeemScript):
script_len = len(redeemScript)
if script_len == 41 and \
redeemScript[0] == bitcoinlib.core.script.OP_DROP and \
redeemScript[35] == bitcoinlib.core.script.OP_CHECKSIGVERIFY and \
redeemScript[37] == bitcoinlib.core.script.OP_DROP and \
redeemScript[38] == bitcoinlib.core.script.OP_DEPTH and \
redeemScript[39] == bitcoinlib.core.script.OP_0 and \
redeemScript[40] == bitcoinlib.core.script.OP_EQUAL:
# - OP_DROP [push] [33-byte pubkey] OP_CHECKSIGVERIFY [n] OP_DROP OP_DEPTH 0 OP_EQUAL
pubkey = redeemScript[2:35]
source = script.pubkey_to_pubkeyhash(pubkey)
redeem_script_is_valid = True
elif script_len > 41 and \
redeemScript[0] == bitcoinlib.core.script.OP_DROP and \
redeemScript[script_len-4] == bitcoinlib.core.script.OP_DROP and \
redeemScript[script_len-3] == bitcoinlib.core.script.OP_DEPTH and \
redeemScript[script_len-2] == bitcoinlib.core.script.OP_0 and \
redeemScript[script_len-1] == bitcoinlib.core.script.OP_EQUAL:
# - OP_DROP {arbitrary multisig script} [n] OP_DROP OP_DEPTH 0 OP_EQUAL
pubkey = None
source = None
redeem_script_is_valid = True
else:
pubkey = None
source = None
redeem_script_is_valid = False
return pubkey, source, redeem_script_is_valid
def pubkeyhash_to_pubkey(pubkeyhash, provided_pubkeys=None):
# Search provided pubkeys.
if provided_pubkeys:
if type(provided_pubkeys) != list:
provided_pubkeys = [provided_pubkeys]
for pubkey in provided_pubkeys:
if pubkeyhash == script.pubkey_to_pubkeyhash(util.unhexlify(pubkey)):
return pubkey
# Search blockchain.
raw_transactions = searchrawtransactions(pubkeyhash, unconfirmed=True)
for tx in raw_transactions:
for vin in tx['vin']:
scriptsig = vin['scriptSig']
asm = scriptsig['asm'].split(' ')
if len(asm) >= 2:
pubkey = asm[1]
if pubkeyhash == script.pubkey_to_pubkeyhash(util.unhexlify(pubkey)):
return pubkey
raise UnknownPubKeyError('Public key was neither provided nor published in blockchain.')
def pubkeyhash_to_pubkey(pubkeyhash, provided_pubkeys=None):
# Search provided pubkeys.
if provided_pubkeys:
if type(provided_pubkeys) != list:
provided_pubkeys = [provided_pubkeys]
for pubkey in provided_pubkeys:
if pubkeyhash == script.pubkey_to_pubkeyhash(
util.unhexlify(pubkey)):
return pubkey
# Search blockchain.
raw_transactions = searchrawtransactions(pubkeyhash)
for tx in raw_transactions:
for vin in tx['vin']:
scriptsig = vin['scriptSig']
asm = scriptsig['asm'].split(' ')
pubkey = asm[1]
if pubkeyhash == script.pubkey_to_pubkeyhash(
util.unhexlify(pubkey)):
return pubkey
# Public key for address neither provided nor published in the blockchain.
return None
def get_pubkey_monosig(pubkeyhash, pubkey_resolver=input_pubkey):
if wallet.is_valid(pubkeyhash):
# If in wallet, get from wallet.
logging.debug('Looking for public key for `{}` in wallet.'.format(pubkeyhash))
if wallet.is_mine(pubkeyhash):
pubkey = wallet.get_pubkey(pubkeyhash)
if pubkey:
return pubkey
logging.debug('Public key for `{}` not found in wallet.'.format(pubkeyhash))
# If in blockchain (and not in wallet), get from blockchain.
logging.debug('Looking for public key for `{}` in blockchain.'.format(pubkeyhash))
try:
pubkey = util.api('search_pubkey', {'pubkeyhash': pubkeyhash, 'provided_pubkeys': None})
except util.RPCError as e:
pubkey = None
if pubkey:
return pubkey
logging.debug('Public key for `{}` not found in blockchain.'.format(pubkeyhash))
# If not in wallet and not in blockchain, get from user.
answer = pubkey_resolver(pubkeyhash)
if not answer:
return None
# Public Key or Private Key?
is_fully_valid_pubkey = True
try:
is_fully_valid_pubkey = script.is_fully_valid(binascii.unhexlify(answer))
except binascii.Error:
is_fully_valid_pubkey = False
if is_fully_valid_pubkey:
logging.debug('Answer was a fully valid public key.')
pubkey = answer
else:
logging.debug('Answer was not a fully valid public key. Assuming answer was a private key.')
private_key = answer
try:
pubkey = script.private_key_to_public_key(private_key)
except script.AltcoinSupportError:
raise InputError('invalid private key')
if pubkeyhash != script.pubkey_to_pubkeyhash(binascii.unhexlify(bytes(pubkey, 'utf-8'))):
raise InputError('provided public or private key does not match the source address')
return pubkey
return None
def get_pubkey_monosig(pubkeyhash, pubkey_resolver=input_pubkey):
if wallet.is_valid(pubkeyhash):
# If in wallet, get from wallet.
logging.debug("Looking for public key for `{}` in wallet.".format(pubkeyhash))
if wallet.is_mine(pubkeyhash):
pubkey = wallet.get_pubkey(pubkeyhash)
if pubkey:
return pubkey
logging.debug("Public key for `{}` not found in wallet.".format(pubkeyhash))
# If in blockchain (and not in wallet), get from blockchain.
logging.debug("Looking for public key for `{}` in blockchain.".format(pubkeyhash))
try:
pubkey = util.api("search_pubkey", {"pubkeyhash": pubkeyhash, "provided_pubkeys": None})
except util.RPCError as e:
pubkey = None
if pubkey:
return pubkey
logging.debug("Public key for `{}` not found in blockchain.".format(pubkeyhash))
# If not in wallet and not in blockchain, get from user.
answer = pubkey_resolver(pubkeyhash)
if not answer:
return None
# Public Key or Private Key?
is_fully_valid_pubkey = True
try:
is_fully_valid_pubkey = script.is_fully_valid(binascii.unhexlify(answer))
except binascii.Error:
is_fully_valid_pubkey = False
if is_fully_valid_pubkey:
logging.debug("Answer was a fully valid public key.")
pubkey = answer
else:
logging.debug("Answer was not a fully valid public key. Assuming answer was a private key.")
private_key = answer
try:
pubkey = script.private_key_to_public_key(private_key)
except script.AltcoinSupportError:
raise InputError("invalid private key")
if pubkeyhash != script.pubkey_to_pubkeyhash(binascii.unhexlify(bytes(pubkey, "utf-8"))):
raise InputError("provided public or private key does not match the source address")
return pubkey
return None
def decode_checkmultisig(asm):
pubkeys, signatures_required = script.get_checkmultisig(asm)
chunk = b''
for pubkey in pubkeys[:-1]: # (No data in last pubkey.)
chunk += pubkey[1:-1] # Skip sign byte and nonce byte.
chunk = arc4_decrypt(chunk)
if chunk[1:len(config.PREFIX) + 1] == config.PREFIX: # Data
# Padding byte in each output (instead of just in the last one) so that encoding methods may be mixed. Also, it’s just not very much data.
chunk_length = chunk[0]
chunk = chunk[1:chunk_length + 1]
destination, data = None, chunk[len(config.PREFIX):]
else: # Destination
pubkeyhashes = [script.pubkey_to_pubkeyhash(pubkey) for pubkey in pubkeys]
destination, data = script.construct_array(signatures_required, pubkeyhashes, len(pubkeyhashes)), None
return destination, data
def decode_checkmultisig(asm):
pubkeys, signatures_required = script.get_checkmultisig(asm)
chunk = b''
for pubkey in pubkeys[:-1]: # (No data in last pubkey.)
chunk += pubkey[1:-1] # Skip sign byte and nonce byte.
chunk = arc4_decrypt(chunk)
if chunk[1:len(config.PREFIX) + 1] == config.PREFIX: # Data
# Padding byte in each output (instead of just in the last one) so that encoding methods may be mixed. Also, it’s just not very much data.
chunk_length = chunk[0]
chunk = chunk[1:chunk_length + 1]
destination, data = None, chunk[len(config.PREFIX):]
else: # Destination
pubkeyhashes = [
script.pubkey_to_pubkeyhash(pubkey) for pubkey in pubkeys
]
destination, data = script.construct_array(signatures_required,
pubkeyhashes,
len(pubkeyhashes)), None
return destination, data
def decode_data_redeem_script(redeemScript, p2sh_is_segwit=False):
script_len = len(redeemScript)
found_data = b''
if script_len == 41 and \
redeemScript[0] == bitcoinlib.core.script.OP_DROP and \
redeemScript[35] == bitcoinlib.core.script.OP_CHECKSIGVERIFY and \
redeemScript[37] == bitcoinlib.core.script.OP_DROP and \
redeemScript[38] == bitcoinlib.core.script.OP_DEPTH and \
redeemScript[39] == bitcoinlib.core.script.OP_0 and \
redeemScript[40] == bitcoinlib.core.script.OP_EQUAL:
# - OP_DROP [push] [33-byte pubkey] OP_CHECKSIGVERIFY [n] OP_DROP OP_DEPTH 0 OP_EQUAL
pubkey = redeemScript[2:35]
if p2sh_is_segwit:
source = script.pubkey_to_p2whash(pubkey)
else:
source = script.pubkey_to_pubkeyhash(pubkey)
redeem_script_is_valid = True
elif script_len > 41 and \
redeemScript[0] == bitcoinlib.core.script.OP_DROP and \
redeemScript[script_len-4] == bitcoinlib.core.script.OP_DROP and \
redeemScript[script_len-3] == bitcoinlib.core.script.OP_DEPTH and \
redeemScript[script_len-2] == bitcoinlib.core.script.OP_0 and \
redeemScript[script_len-1] == bitcoinlib.core.script.OP_EQUAL:
# - OP_DROP {arbitrary multisig script} [n] OP_DROP OP_DEPTH 0 OP_EQUAL
pubkey = None
source = None
redeem_script_is_valid = True
else:
pubkey = None
source = None
redeem_script_is_valid = False
try:
opcode = bitcoinlib.core.script.CScriptOp(redeemScript[0])
if opcode > bitcoinlib.core.script.OP_0 and opcode < bitcoinlib.core.script.OP_PUSHDATA1 or \
opcode in (bitcoinlib.core.script.OP_PUSHDATA1, bitcoinlib.core.script.OP_PUSHDATA2, bitcoinlib.core.script.OP_PUSHDATA4):
pos = 0
pos, found_data = decode_data_push(redeemScript, 0)
if redeemScript[pos] == bitcoinlib.core.script.OP_DROP:
pos += 1
valid_sig = False
opcode = redeemScript[pos]
if type(opcode) != type(''):
if opcode >= bitcoinlib.core.script.OP_2 and opcode <= bitcoinlib.core.script.OP_15:
# it's multisig
req_sigs = opcode - bitcoinlib.core.script.OP_1 + 1
pos += 1
pubkey = None
num_sigs = 0
found_sigs = False
while not found_sigs:
pos, npubkey = decode_data_push(
redeemScript, pos)
num_sigs += 1
if redeemScript[
pos] - bitcoinlib.core.script.OP_1 + 1 == num_sigs:
found_sigs = True
pos += 1
valid_sig = redeemScript[
pos] == bitcoinlib.core.script.OP_CHECKMULTISIGVERIFY
else:
# it's p2pkh
pos, pubkey = decode_data_push(redeemScript, pos)
source = script.pubkey_to_pubkeyhash(pubkey)
valid_sig = redeemScript[
pos] == bitcoinlib.core.script.OP_CHECKSIGVERIFY
pos += 1
if valid_sig:
redeem_script_is_valid = redeemScript[pos + 1] == bitcoinlib.core.script.OP_DROP and \
redeemScript[pos + 2] == bitcoinlib.core.script.OP_DEPTH and \
redeemScript[pos + 3] == 0 and \
redeemScript[pos + 4] == bitcoinlib.core.script.OP_EQUAL
except Exception as e:
pass #traceback.print_exc()
return pubkey, source, redeem_script_is_valid, found_data
