Differential D5217 Diff 16164 test/functional/test_framework/script.py

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test/functional/test_framework/script.py

Show First 20 Lines • Show All 468 Lines • ▼ Show 20 Lines	def __new__(cls, value=b''):
if isinstance(value, bytes) or isinstance(value, bytearray):		if isinstance(value, bytes) or isinstance(value, bytearray):
return super(CScript, cls).__new__(cls, value)		return super(CScript, cls).__new__(cls, value)
else:		else:
def coerce_iterable(iterable):		def coerce_iterable(iterable):
for instance in iterable:		for instance in iterable:
yield cls.__coerce_instance(instance)		yield cls.__coerce_instance(instance)
# Annoyingly on both python2 and python3 bytes.join() always		# Annoyingly on both python2 and python3 bytes.join() always
# returns a bytes instance even when subclassed.		# returns a bytes instance even when subclassed.
return super(CScript, cls).__new__(cls, b''.join(coerce_iterable(value)))		return super(CScript, cls).__new__(
		cls, b''.join(coerce_iterable(value)))

def raw_iter(self):		def raw_iter(self):
"""Raw iteration		"""Raw iteration

Yields tuples of (opcode, data, sop_idx) so that the different possible		Yields tuples of (opcode, data, sop_idx) so that the different possible
PUSHDATA encodings can be accurately distinguished, as well as		PUSHDATA encodings can be accurately distinguished, as well as
determining the exact opcode byte indexes. (sop_idx)		determining the exact opcode byte indexes. (sop_idx)
"""		"""
▲ Show 20 Lines • Show All 148 Lines • ▼ Show 20 Lines	def SignatureHash(script, txTo, inIdx, hashtype):
"""Consensus-correct SignatureHash		"""Consensus-correct SignatureHash

Returns (hash, err) to precisely match the consensus-critical behavior of		Returns (hash, err) to precisely match the consensus-critical behavior of
the SIGHASH_SINGLE bug. (inIdx is not checked for validity)		the SIGHASH_SINGLE bug. (inIdx is not checked for validity)
"""		"""
HASH_ONE = b'\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'		HASH_ONE = b'\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'

if inIdx >= len(txTo.vin):		if inIdx >= len(txTo.vin):
return (HASH_ONE, "inIdx {} out of range ({})".format(inIdx, len(txTo.vin)))		return (HASH_ONE, "inIdx {} out of range ({})".format(
		inIdx, len(txTo.vin)))
txtmp = CTransaction(txTo)		txtmp = CTransaction(txTo)

for txin in txtmp.vin:		for txin in txtmp.vin:
txin.scriptSig = b''		txin.scriptSig = b''
txtmp.vin[inIdx].scriptSig = FindAndDelete(		txtmp.vin[inIdx].scriptSig = FindAndDelete(
script, CScript([OP_CODESEPARATOR]))		script, CScript([OP_CODESEPARATOR]))

if (hashtype & 0x1f) == SIGHASH_NONE:		if (hashtype & 0x1f) == SIGHASH_NONE:
txtmp.vout = []		txtmp.vout = []

for i in range(len(txtmp.vin)):		for i in range(len(txtmp.vin)):
if i != inIdx:		if i != inIdx:
txtmp.vin[i].nSequence = 0		txtmp.vin[i].nSequence = 0

elif (hashtype & 0x1f) == SIGHASH_SINGLE:		elif (hashtype & 0x1f) == SIGHASH_SINGLE:
outIdx = inIdx		outIdx = inIdx
if outIdx >= len(txtmp.vout):		if outIdx >= len(txtmp.vout):
return (HASH_ONE, "outIdx {} out of range ({})".format(outIdx, len(txtmp.vout)))		return (HASH_ONE, "outIdx {} out of range ({})".format(
		outIdx, len(txtmp.vout)))

tmp = txtmp.vout[outIdx]		tmp = txtmp.vout[outIdx]
txtmp.vout = []		txtmp.vout = []
for i in range(outIdx):		for i in range(outIdx):
txtmp.vout.append(CTxOut(-1))		txtmp.vout.append(CTxOut(-1))
txtmp.vout.append(tmp)		txtmp.vout.append(tmp)

for i in range(len(txtmp.vin)):		for i in range(len(txtmp.vin)):
Show All 23 Lines	def SignatureHashForkId(script, txTo, inIdx, hashtype, amount):
hashOutputs = 0		hashOutputs = 0

if not (hashtype & SIGHASH_ANYONECANPAY):		if not (hashtype & SIGHASH_ANYONECANPAY):
serialize_prevouts = bytes()		serialize_prevouts = bytes()
for i in txTo.vin:		for i in txTo.vin:
serialize_prevouts += i.prevout.serialize()		serialize_prevouts += i.prevout.serialize()
hashPrevouts = uint256_from_str(hash256(serialize_prevouts))		hashPrevouts = uint256_from_str(hash256(serialize_prevouts))

if (not (hashtype & SIGHASH_ANYONECANPAY) and (hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE):		if (not (hashtype & SIGHASH_ANYONECANPAY) and (hashtype & 0x1f)
		!= SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE):
serialize_sequence = bytes()		serialize_sequence = bytes()
for i in txTo.vin:		for i in txTo.vin:
serialize_sequence += struct.pack("<I", i.nSequence)		serialize_sequence += struct.pack("<I", i.nSequence)
hashSequence = uint256_from_str(hash256(serialize_sequence))		hashSequence = uint256_from_str(hash256(serialize_sequence))

if ((hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE):		if ((hashtype & 0x1f) != SIGHASH_SINGLE and (
		hashtype & 0x1f) != SIGHASH_NONE):
serialize_outputs = bytes()		serialize_outputs = bytes()
for o in txTo.vout:		for o in txTo.vout:
serialize_outputs += o.serialize()		serialize_outputs += o.serialize()
hashOutputs = uint256_from_str(hash256(serialize_outputs))		hashOutputs = uint256_from_str(hash256(serialize_outputs))
elif ((hashtype & 0x1f) == SIGHASH_SINGLE and inIdx < len(txTo.vout)):		elif ((hashtype & 0x1f) == SIGHASH_SINGLE and inIdx < len(txTo.vout)):
serialize_outputs = txTo.vout[inIdx].serialize()		serialize_outputs = txTo.vout[inIdx].serialize()
hashOutputs = uint256_from_str(hash256(serialize_outputs))		hashOutputs = uint256_from_str(hash256(serialize_outputs))

Show All 13 Lines