def dump_signatures(tx, tx_in, tx_out, idx, netcode, address_prefix,
traceback_f, disassembly_level):
signatures = []
for opcode in opcode_list(tx_in.script):
if not opcode.startswith("OP_"):
try:
signatures.append(parse_signature_blob(h2b(opcode[1:-1])))
except UnexpectedDER:
pass
if signatures:
sig_types_identical = (tuple(zip(*signatures))[1].count(
signatures[0][1]) == len(signatures))
i = 1 if len(signatures) > 1 else ''
for sig_pair, sig_type in signatures:
print(" r{0}: {1:#x}\n s{0}: {2:#x}".format(
i, *sig_pair))
if not sig_types_identical and tx_out:
print(" z{}: {:#x} {}".format(
i, tx.signature_hash(tx_out.script, idx, sig_type),
sighash_type_to_string(sig_type)))
if i:
i += 1
if sig_types_identical and tx_out:
print(" z:{} {:#x} {}".format(
' ' if i else '',
tx.signature_hash(tx_out.script, idx, sig_type),
sighash_type_to_string(sig_type)))
def fromTransaction(blockn, txhex):
tx = Tx.from_hex(txhex)
#print (binascii.hexlify (tx.blanked_hash ()))
# Get the opreturn
oprets = []
for txout in tx.txs_out:
ops = tools.opcode_list(txout.script)
if len(ops) > 0 and ops[0] == 'OP_RETURN':
oprets.append(ops[1])
# If there's no opreturn, return empty
if len(oprets) == 0:
return None
# Check opret datas
for opret in oprets:
# Get the opreturn data
try:
data = (''.join(
chr(int(opret[i:i + 2], 16))
for i in range(0, len(opret), 2)))
except:
# Other oprets with invalid data
continue
# Check if data is a contractchain message
if data[0:len(Protocol.MAGIC_FLAG)] != Protocol.MAGIC_FLAG:
continue
m = Message()
# Grab metadata from transaction
m.Protocol = ord(
data[len(Protocol.MAGIC_FLAG):len(Protocol.MAGIC_FLAG) + 1])
m.DappCode = [
ord(data[len(Protocol.MAGIC_FLAG) +
1:len(Protocol.MAGIC_FLAG) + 2]),
ord(data[len(Protocol.MAGIC_FLAG) +
2:len(Protocol.MAGIC_FLAG) + 3])
]
m.Method = ord(data[len(Protocol.MAGIC_FLAG) +
3:len(Protocol.MAGIC_FLAG) + 4])
m.Hash = tx.id()
m.Block = blockn
m.DataHash = data[len(Protocol.MAGIC_FLAG) +
4:len(Protocol.MAGIC_FLAG) + 4 +
Protocol.DATA_HASH_SIZE].encode('ascii')
m.Player = tx.txs_in[0].bitcoin_address(
address_prefix_for_netcode(config.CONF['chain']))
return m
return None
def public_key_sec(self):
"""Return the public key as sec, or None in case of failure."""
if self.is_coinbase():
return None
opcodes = opcode_list(self.script)
if len(opcodes) == 2 and opcodes[0].startswith("[30"):
# the second opcode is probably the public key as sec
sec = h2b(opcodes[1][1:-1])
return sec
return None
def cosign(tx, keys, redeem_scripts=None):
"""
Utility for locally signing a multisig transaction.
:param tx: Transaction to sign.
:param redeem_scripts: Required when adding first signature only.
:param keys: one key per transaction input
:return:
"""
if not keys: # Nothing to do
return
if redeem_scripts: # scripts supplied as a param
raw_scripts = [script.script() for script in redeem_scripts]
else: # parsing scripts from tx
raw_scripts = [h2b(opcode_list(script)[-1]) for script in [tx_in.script for tx_in in tx.txs_in] if script]
lookup = build_p2sh_lookup(raw_scripts) if raw_scripts else None
db = LazySecretExponentDBWithNetwork(keys[0]._netcode, [key.wif() for key in keys], {})
tx.sign(db, p2sh_lookup=lookup)
def fromTransaction (blockn, txhex):
tx = Tx.from_hex(txhex)
#print (binascii.hexlify (tx.blanked_hash ()))
# Get the opreturn
oprets = []
for txout in tx.txs_out:
ops = tools.opcode_list (txout.script)
if len (ops) > 0 and ops[0] == 'OP_RETURN':
oprets.append (ops[1])
# If there's no opreturn, return empty
if len (oprets) == 0:
return None
# Check opret datas
for opret in oprets:
# Get the opreturn data
try:
data = (''.join(chr(int(opret[i:i+2], 16)) for i in range(0, len(opret), 2)))
except:
# Other oprets with invalid data
continue
# Check if data is a contractchain message
if data[0:len (Protocol.MAGIC_FLAG)] != Protocol.MAGIC_FLAG:
continue
m = Message ()
# Grab metadata from transaction
m.Protocol = ord (data[len(Protocol.MAGIC_FLAG):len(Protocol.MAGIC_FLAG)+1])
m.DappCode = [ ord (data[len(Protocol.MAGIC_FLAG)+1:len(Protocol.MAGIC_FLAG)+2]), ord (data[len(Protocol.MAGIC_FLAG)+2:len(Protocol.MAGIC_FLAG)+3]) ]
m.Method = ord (data[len(Protocol.MAGIC_FLAG)+3:len(Protocol.MAGIC_FLAG)+4])
m.Hash = tx.id ()
m.Block = blockn
m.DataHash = data[len(Protocol.MAGIC_FLAG)+4:len(Protocol.MAGIC_FLAG)+4+Protocol.DATA_HASH_SIZE].encode ('ascii')
m.Player = tx.txs_in[0].bitcoin_address (address_prefix_for_netcode(config.CONF['chain']))
return m
return None
def isMessage (txhex):
tx = Tx.from_hex (txhex)
oprets = []
for txout in tx.txs_out:
ops = tools.opcode_list (txout.script)
#print ('OPS:',ops)
if len (ops) > 0 and ops[0] == 'OP_RETURN':
oprets.append (ops[1])
if len (oprets) == 0:
return False
for opret in oprets:
data = (''.join(chr(int(opret[i:i+2], 16)) for i in range(0, len(opret), 2)))
if data[0:len (Protocol.MAGIC_FLAG)] != Protocol.MAGIC_FLAG:
continue
else:
return True
return False
def isMessage(txhex):
tx = Tx.from_hex(txhex)
oprets = []
for txout in tx.txs_out:
ops = tools.opcode_list(txout.script)
#print ('OPS:',ops)
if len(ops) > 0 and ops[0] == 'OP_RETURN':
oprets.append(ops[1])
if len(oprets) == 0:
return False
for opret in oprets:
data = (''.join(
chr(int(opret[i:i + 2], 16)) for i in range(0, len(opret), 2)))
if data[0:len(Protocol.MAGIC_FLAG)] != Protocol.MAGIC_FLAG:
continue
else:
return True
return False
def dump_signatures(tx, tx_in, tx_out, idx, netcode, address_prefix, traceback_f, disassembly_level):
signatures = []
for opcode in opcode_list(tx_in.script):
if not opcode.startswith("OP_"):
try:
signatures.append(parse_signature_blob(h2b(opcode[1:-1])))
except UnexpectedDER:
pass
if signatures:
sig_types_identical = (
tuple(zip(*signatures))[1].count(signatures[0][1]) == len(signatures))
i = 1 if len(signatures) > 1 else ''
for sig_pair, sig_type in signatures:
print(" r{0}: {1:#x}\n s{0}: {2:#x}".format(i, *sig_pair))
if not sig_types_identical and tx_out:
print(" z{}: {:#x} {}".format(i, tx.signature_hash(tx_out.script, idx, sig_type),
sighash_type_to_string(sig_type)))
if i:
i += 1
if sig_types_identical and tx_out:
print(" z:{} {:#x} {}".format(' ' if i else '', tx.signature_hash(
tx_out.script, idx, sig_type), sighash_type_to_string(sig_type)))
def dump_tx(tx, netcode, verbose_signature, disassembly_level, do_trace):
address_prefix = address_prefix_for_netcode(netcode)
tx_bin = stream_to_bytes(tx.stream)
print("Version: %2d tx hash %s %d bytes " % (tx.version, tx.id(), len(tx_bin)))
print("TxIn count: %d; TxOut count: %d" % (len(tx.txs_in), len(tx.txs_out)))
if tx.lock_time == 0:
meaning = "valid anytime"
elif tx.lock_time < LOCKTIME_THRESHOLD:
meaning = "valid after block index %d" % tx.lock_time
else:
when = datetime.datetime.utcfromtimestamp(tx.lock_time)
meaning = "valid on or after %s utc" % when.isoformat()
print("Lock time: %d (%s)" % (tx.lock_time, meaning))
print("Input%s:" % ('s' if len(tx.txs_in) != 1 else ''))
missing_unspents = tx.missing_unspents()
traceback_f = trace_script if do_trace else None
for idx, tx_in in enumerate(tx.txs_in):
if disassembly_level > 0:
signature_for_hash_type_f = lambda hash_type, script: tx.signature_hash(
script, idx, hash_type)
if tx.is_coinbase():
print("%4d: COINBASE %12.5f mBTC" % (idx, satoshi_to_mbtc(tx.total_in())))
else:
suffix = ""
if tx.missing_unspent(idx):
tx_out = None
address = tx_in.bitcoin_address(address_prefix=address_prefix)
else:
tx_out = tx.unspents[idx]
sig_result = " sig ok" if tx.is_signature_ok(idx, traceback_f=traceback_f) else " BAD SIG"
suffix = " %12.5f mBTC %s" % (satoshi_to_mbtc(tx_out.coin_value), sig_result)
address = tx_out.bitcoin_address(netcode=netcode)
t = "%4d: %34s from %s:%-4d%s" % (idx, address, b2h_rev(tx_in.previous_hash),
tx_in.previous_index, suffix)
print(t.rstrip())
if disassembly_level > 0:
out_script = b''
if tx_out:
out_script = tx_out.script
for (pre_annotations, pc, opcode, instruction, post_annotations) in \
disassemble_scripts(tx_in.script, out_script, signature_for_hash_type_f):
for l in pre_annotations:
print(" %s" % l)
print( " %4x: %02x %s" % (pc, opcode, instruction))
for l in post_annotations:
print(" %s" % l)
if verbose_signature:
signatures = []
for opcode in opcode_list(tx_in.script):
if not opcode.startswith("OP_"):
try:
signatures.append(parse_signature_blob(h2b(opcode)))
except UnexpectedDER:
pass
if signatures:
sig_types_identical = (zip(*signatures)[1]).count(signatures[0][1]) == len(signatures)
i = 1 if len(signatures) > 1 else ''
for sig_pair, sig_type in signatures:
print(" r{0}: {1:#x}\n s{0}: {2:#x}".format(i, *sig_pair))
if not sig_types_identical and tx_out:
print(" z{}: {:#x} {}".format(i, tx.signature_hash(tx_out.script, idx, sig_type),
sighash_type_to_string(sig_type)))
if i: i += 1
if sig_types_identical and tx_out:
print(" z:{} {:#x} {}".format(' ' if i else '', tx.signature_hash(tx_out.script, idx, sig_type),
sighash_type_to_string(sig_type)))
print("Output%s:" % ('s' if len(tx.txs_out) != 1 else ''))
for idx, tx_out in enumerate(tx.txs_out):
amount_mbtc = satoshi_to_mbtc(tx_out.coin_value)
address = tx_out.bitcoin_address(netcode=netcode) or "(unknown)"
print("%4d: %34s receives %12.5f mBTC" % (idx, address, amount_mbtc))
if disassembly_level > 0:
for (pre_annotations, pc, opcode, instruction, post_annotations) in \
disassemble_scripts(b'', tx_out.script, signature_for_hash_type_f):
for l in pre_annotations:
print(" %s" % l)
print( " %4x: %02x %s" % (pc, opcode, instruction))
for l in post_annotations:
print(" %s" % l)
if not missing_unspents:
print("Total input %12.5f mBTC" % satoshi_to_mbtc(tx.total_in()))
print( "Total output %12.5f mBTC" % satoshi_to_mbtc(tx.total_out()))
if not missing_unspents:
print("Total fees %12.5f mBTC" % satoshi_to_mbtc(tx.fee()))
def dump_tx(tx, netcode, verbose_signature, disassembly_level, do_trace,
use_pdb):
address_prefix = address_prefix_for_netcode(netcode)
tx_bin = stream_to_bytes(tx.stream)
# print("Tx_type:%2d" % tx.tx_type)
if TransactionUtils.isCFTransation(tx):
print("original_hash : %s" % tx.cf_header.original_hash)
print("target_amount : %s" % tx.cf_header.target_amount)
print("pubkey : %s" % tx.cf_header.pubkey)
print("end_time : %s" % tx.cf_header.end_time)
print("pre_hash : %s" % tx.cf_header.pre_hash)
print("lack_amount : %s" % tx.cf_header.lack_amount)
print("Version: %2d tx hash %s %d bytes " %
(tx.version, tx.id(), len(tx_bin)))
print("TransactionIn count: %d; TransactionOut count: %d" %
(len(tx.txs_in), len(tx.txs_out)))
if tx.lock_time == 0:
meaning = "valid anytime"
elif tx.lock_time < LOCKTIME_THRESHOLD:
meaning = "valid after block index %d" % tx.lock_time
else:
when = datetime.datetime.utcfromtimestamp(tx.lock_time)
meaning = "valid on or after %s utc" % when.isoformat()
print("Lock time: %d (%s)" % (tx.lock_time, meaning))
print("Input%s:" % ('s' if len(tx.txs_in) != 1 else ''))
missing_unspents = tx.missing_unspents()
def trace_script(old_pc, opcode, data, stack, altstack, if_condition_stack,
is_signature):
from pycoin.tx.script.tools import disassemble_for_opcode_data
print("%3d : %02x %s" %
(old_pc, opcode, disassemble_for_opcode_data(opcode, data)))
if use_pdb:
import pdb
from pycoin.serialize import b2h
print("stack: [%s]" % ', '.join(b2h(s) for s in stack))
if len(altstack) > 0:
print("altstack: %s" % altstack)
if len(if_condition_stack) > 0:
print("condition stack: %s" %
', '.join(int(s) for s in if_condition_stack))
pdb.set_trace()
traceback_f = trace_script if do_trace or use_pdb else None
for idx, tx_in in enumerate(tx.txs_in):
if disassembly_level > 0:
def signature_for_hash_type_f(hash_type, script):
return tx.signature_hash(script, idx, hash_type)
if tx.is_coinbase():
print("%4d: COINBASE %12.5f mBTC" %
(idx, satoshi_to_mbtc(tx.total_in())))
else:
suffix = ""
if tx.missing_unspent(idx):
tx_out = None
address = tx_in.bitcoin_address(address_prefix=address_prefix)
else:
tx_out = tx.unspents[idx]
sig_result = " sig ok" if tx.is_signature_ok(
idx, traceback_f=traceback_f) else " BAD SIG"
suffix = " %12.5f mBTC %s" % (satoshi_to_mbtc(
tx_out.coin_value), sig_result)
address = tx_out.bitcoin_address(netcode=netcode)
t = "%4d: %34s from %s:%-4d%s" % (idx, address,
b2h_rev(tx_in.previous_hash),
tx_in.previous_index, suffix)
print(t.rstrip())
if disassembly_level > 0:
out_script = b''
if tx_out:
out_script = tx_out.script
for (pre_annotations, pc, opcode, instruction, post_annotations) in \
disassemble_scripts(
tx_in.script, out_script, tx.lock_time, signature_for_hash_type_f):
for l in pre_annotations:
print(" %s" % l)
print(" %4x: %02x %s" % (pc, opcode, instruction))
for l in post_annotations:
print(" %s" % l)
if verbose_signature:
signatures = []
for opcode in opcode_list(tx_in.script):
if not opcode.startswith("OP_"):
try:
signatures.append(parse_signature_blob(
h2b(opcode)))
except UnexpectedDER:
pass
if signatures:
sig_types_identical = (zip(*signatures)[1]).count(
signatures[0][1]) == len(signatures)
i = 1 if len(signatures) > 1 else ''
for sig_pair, sig_type in signatures:
print(" r{0}: {1:#x}\n s{0}: {2:#x}".format(
i, *sig_pair))
if not sig_types_identical and tx_out:
print(" z{}: {:#x} {}".format(
i,
tx.signature_hash(tx_out.script, idx,
sig_type),
sighash_type_to_string(sig_type)))
if i:
i += 1
if sig_types_identical and tx_out:
print(" z:{} {:#x} {}".format(
' ' if i else '',
tx.signature_hash(tx_out.script, idx, sig_type),
sighash_type_to_string(sig_type)))
print("Output%s:" % ('s' if len(tx.txs_out) != 1 else ''))
for idx, tx_out in enumerate(tx.txs_out):
amount_mbtc = satoshi_to_mbtc(tx_out.coin_value)
address = tx_out.bitcoin_address(netcode=netcode) or "(unknown)"
print("%4d: %34s receives %12.5f mBTC" % (idx, address, amount_mbtc))
if disassembly_level > 0:
for (pre_annotations, pc, opcode, instruction, post_annotations) in \
disassemble_scripts(b'', tx_out.script, tx.lock_time, signature_for_hash_type_f):
for l in pre_annotations:
print(" %s" % l)
print(" %4x: %02x %s" % (pc, opcode, instruction))
for l in post_annotations:
print(" %s" % l)
if not missing_unspents:
print("Total input %12.5f mBTC" % satoshi_to_mbtc(tx.total_in()))
print("Total output %12.5f mBTC" % satoshi_to_mbtc(tx.total_out()))
if not missing_unspents:
print("Total fees %12.5f mBTC" % satoshi_to_mbtc(tx.fee()))
def to_codes(script):
return tools.opcode_list(script)
