diff options
Diffstat (limited to 'test/functional/test_framework/script.py')
| -rw-r--r-- | test/functional/test_framework/script.py | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/test/functional/test_framework/script.py b/test/functional/test_framework/script.py index 7b19d31e17..97d62f957b 100644 --- a/test/functional/test_framework/script.py +++ b/test/functional/test_framework/script.py @@ -8,7 +8,6 @@ This file is modified from python-bitcoinlib. """ from collections import namedtuple -import struct import unittest from .key import TaggedHash, tweak_add_pubkey, compute_xonly_pubkey @@ -58,9 +57,9 @@ class CScriptOp(int): elif len(d) <= 0xff: return b'\x4c' + bytes([len(d)]) + d # OP_PUSHDATA1 elif len(d) <= 0xffff: - return b'\x4d' + struct.pack(b'<H', len(d)) + d # OP_PUSHDATA2 + return b'\x4d' + len(d).to_bytes(2, "little") + d # OP_PUSHDATA2 elif len(d) <= 0xffffffff: - return b'\x4e' + struct.pack(b'<I', len(d)) + d # OP_PUSHDATA4 + return b'\x4e' + len(d).to_bytes(4, "little") + d # OP_PUSHDATA4 else: raise ValueError("Data too long to encode in a PUSHDATA op") @@ -670,7 +669,7 @@ def LegacySignatureMsg(script, txTo, inIdx, hashtype): txtmp.vin.append(tmp) s = txtmp.serialize_without_witness() - s += struct.pack(b"<I", hashtype) + s += hashtype.to_bytes(4, "little") return (s, None) @@ -726,7 +725,7 @@ def SegwitV0SignatureMsg(script, txTo, inIdx, hashtype, amount): if (not (hashtype & SIGHASH_ANYONECANPAY) and (hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE): serialize_sequence = bytes() for i in txTo.vin: - serialize_sequence += struct.pack("<I", i.nSequence) + serialize_sequence += i.nSequence.to_bytes(4, "little") hashSequence = uint256_from_str(hash256(serialize_sequence)) if ((hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE): @@ -739,16 +738,16 @@ def SegwitV0SignatureMsg(script, txTo, inIdx, hashtype, amount): hashOutputs = uint256_from_str(hash256(serialize_outputs)) ss = bytes() - ss += struct.pack("<i", txTo.nVersion) + ss += txTo.version.to_bytes(4, "little") ss += ser_uint256(hashPrevouts) ss += ser_uint256(hashSequence) ss += txTo.vin[inIdx].prevout.serialize() ss += ser_string(script) - ss += struct.pack("<q", amount) - ss += struct.pack("<I", txTo.vin[inIdx].nSequence) + ss += amount.to_bytes(8, "little", signed=True) + ss += txTo.vin[inIdx].nSequence.to_bytes(4, "little") ss += ser_uint256(hashOutputs) ss += txTo.nLockTime.to_bytes(4, "little") - ss += struct.pack("<I", hashtype) + ss += hashtype.to_bytes(4, "little") return ss def SegwitV0SignatureHash(*args, **kwargs): @@ -800,13 +799,13 @@ def BIP341_sha_prevouts(txTo): return sha256(b"".join(i.prevout.serialize() for i in txTo.vin)) def BIP341_sha_amounts(spent_utxos): - return sha256(b"".join(struct.pack("<q", u.nValue) for u in spent_utxos)) + return sha256(b"".join(u.nValue.to_bytes(8, "little", signed=True) for u in spent_utxos)) def BIP341_sha_scriptpubkeys(spent_utxos): return sha256(b"".join(ser_string(u.scriptPubKey) for u in spent_utxos)) def BIP341_sha_sequences(txTo): - return sha256(b"".join(struct.pack("<I", i.nSequence) for i in txTo.vin)) + return sha256(b"".join(i.nSequence.to_bytes(4, "little") for i in txTo.vin)) def BIP341_sha_outputs(txTo): return sha256(b"".join(o.serialize() for o in txTo.vout)) @@ -818,8 +817,8 @@ def TaprootSignatureMsg(txTo, spent_utxos, hash_type, input_index = 0, scriptpat in_type = hash_type & SIGHASH_ANYONECANPAY spk = spent_utxos[input_index].scriptPubKey ss = bytes([0, hash_type]) # epoch, hash_type - ss += struct.pack("<i", txTo.nVersion) - ss += struct.pack("<I", txTo.nLockTime) + ss += txTo.version.to_bytes(4, "little") + ss += txTo.nLockTime.to_bytes(4, "little") if in_type != SIGHASH_ANYONECANPAY: ss += BIP341_sha_prevouts(txTo) ss += BIP341_sha_amounts(spent_utxos) @@ -835,11 +834,11 @@ def TaprootSignatureMsg(txTo, spent_utxos, hash_type, input_index = 0, scriptpat ss += bytes([spend_type]) if in_type == SIGHASH_ANYONECANPAY: ss += txTo.vin[input_index].prevout.serialize() - ss += struct.pack("<q", spent_utxos[input_index].nValue) + ss += spent_utxos[input_index].nValue.to_bytes(8, "little", signed=True) ss += ser_string(spk) - ss += struct.pack("<I", txTo.vin[input_index].nSequence) + ss += txTo.vin[input_index].nSequence.to_bytes(4, "little") else: - ss += struct.pack("<I", input_index) + ss += input_index.to_bytes(4, "little") if (spend_type & 1): ss += sha256(ser_string(annex)) if out_type == SIGHASH_SINGLE: @@ -850,7 +849,7 @@ def TaprootSignatureMsg(txTo, spent_utxos, hash_type, input_index = 0, scriptpat if (scriptpath): ss += TaggedHash("TapLeaf", bytes([leaf_ver]) + ser_string(script)) ss += bytes([0]) - ss += struct.pack("<i", codeseparator_pos) + ss += codeseparator_pos.to_bytes(4, "little", signed=True) assert len(ss) == 175 - (in_type == SIGHASH_ANYONECANPAY) * 49 - (out_type != SIGHASH_ALL and out_type != SIGHASH_SINGLE) * 32 + (annex is not None) * 32 + scriptpath * 37 return ss |