From 08067aebfd7e838e6ce6b030c31a69422260fc6f Mon Sep 17 00:00:00 2001 From: Andrew Chow Date: Mon, 6 Apr 2020 20:22:06 -0400 Subject: Add script equivalent of functions in address.py --- test/functional/test_framework/script_util.py | 59 ++++++++++++++++++++++++++- 1 file changed, 58 insertions(+), 1 deletion(-) (limited to 'test/functional/test_framework/script_util.py') diff --git a/test/functional/test_framework/script_util.py b/test/functional/test_framework/script_util.py index 80fbae70bf..318a438705 100755 --- a/test/functional/test_framework/script_util.py +++ b/test/functional/test_framework/script_util.py @@ -3,7 +3,8 @@ # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. """Useful Script constants and utils.""" -from test_framework.script import CScript +from test_framework.script import CScript, hash160, sha256, OP_0, OP_DUP, OP_HASH160, OP_CHECKSIG, OP_EQUAL, OP_EQUALVERIFY +from test_framework.util import hex_str_to_bytes # To prevent a "tx-size-small" policy rule error, a transaction has to have a # non-witness size of at least 82 bytes (MIN_STANDARD_TX_NONWITNESS_SIZE in @@ -24,3 +25,59 @@ from test_framework.script import CScript # met. DUMMY_P2WPKH_SCRIPT = CScript([b'a' * 21]) DUMMY_2_P2WPKH_SCRIPT = CScript([b'b' * 21]) + +def keyhash_to_p2pkh_script(hash, main = False): + assert len(hash) == 20 + return CScript([OP_DUP, OP_HASH160, hash, OP_EQUALVERIFY, OP_CHECKSIG]) + +def scripthash_to_p2sh_script(hash, main = False): + assert len(hash) == 20 + return CScript([OP_HASH160, hash, OP_EQUAL]) + +def key_to_p2pkh_script(key, main = False): + key = check_key(key) + return keyhash_to_p2pkh_script(hash160(key), main) + +def script_to_p2sh_script(script, main = False): + script = check_script(script) + return scripthash_to_p2sh_script(hash160(script), main) + +def key_to_p2sh_p2wpkh_script(key, main = False): + key = check_key(key) + p2shscript = CScript([OP_0, hash160(key)]) + return script_to_p2sh_script(p2shscript, main) + +def program_to_witness_script(version, program, main = False): + if isinstance(program, str): + program = hex_str_to_bytes(program) + assert 0 <= version <= 16 + assert 2 <= len(program) <= 40 + assert version > 0 or len(program) in [20, 32] + return CScript([version, program]) + +def script_to_p2wsh_script(script, main = False): + script = check_script(script) + return program_to_witness_script(0, sha256(script), main) + +def key_to_p2wpkh_script(key, main = False): + key = check_key(key) + return program_to_witness_script(0, hash160(key), main) + +def script_to_p2sh_p2wsh_script(script, main = False): + script = check_script(script) + p2shscript = CScript([OP_0, sha256(script)]) + return script_to_p2sh_script(p2shscript, main) + +def check_key(key): + if isinstance(key, str): + key = hex_str_to_bytes(key) # Assuming this is hex string + if isinstance(key, bytes) and (len(key) == 33 or len(key) == 65): + return key + assert False + +def check_script(script): + if isinstance(script, str): + script = hex_str_to_bytes(script) # Assuming this is hex string + if isinstance(script, bytes) or isinstance(script, CScript): + return script + assert False -- cgit v1.2.3