def dump_failure_info(spend_tx, script_in, script_out, flags, flags_string,
expected, actual, message, comment):
return
print()
print(flags_string)
print("EXPECTED: %s" % expected)
print("ACTUAL: %s" % actual)
print("MESSAGE: %s" % message)
print(comment)
print(disassemble(compile(script_in)))
print(disassemble(compile(script_out)))
from pycoin.serialize import b2h
def tbf(*args):
pc, opcode, data, stack, altstack, is_signature, is_condition = args
from pycoin.tx.script.tools import disassemble_for_opcode_data
opd = disassemble_for_opcode_data(opcode, data)
if len(altstack) == 0:
altstack = ''
print("%s %s\n %3x %s" % (stack, altstack, pc, opd))
import pdb
pdb.set_trace()
print("test failed: '%s' '%s' : %s %s" %
(script_in, script_out, comment, flags_string))
try:
check_solution(spend_tx, tx_in_idx=0, traceback_f=tbf, flags=flags)
except Exception as ex:
print(ex)
try:
check_solution(spend_tx, tx_in_idx=0, traceback_f=tbf, flags=flags)
except Exception as ex:
print(ex)
import pdb
pdb.set_trace()
def dump_failure_info(spend_tx, script_in, script_out, flags, flags_string, expected, actual, message, comment):
return
print()
print(flags_string)
print("EXPECTED: %s" % expected)
print("ACTUAL: %s" % actual)
print("MESSAGE: %s" % message)
print(comment)
print(disassemble(compile(script_in)))
print(disassemble(compile(script_out)))
from pycoin.serialize import b2h
def tbf(*args):
pc, opcode, data, stack, altstack, is_signature, is_condition = args
from pycoin.tx.script.tools import disassemble_for_opcode_data
opd = disassemble_for_opcode_data(opcode, data)
if len(altstack) == 0:
altstack = ''
print("%s %s\n %3x %s" % (stack, altstack, pc, opd))
import pdb
pdb.set_trace()
print("test failed: '%s' '%s' : %s %s" % (script_in, script_out, comment, flags_string))
try:
check_solution(spend_tx, tx_in_idx=0, traceback_f=tbf, flags=flags)
except Exception as ex:
print(ex)
try:
check_solution(spend_tx, tx_in_idx=0, traceback_f=tbf, flags=flags)
except Exception as ex:
print(ex)
import pdb; pdb.set_trace()
def main():
tx = Tx.tx_from_hex(sys.argv[1])
print('Input Scripts:')
for inp in tx.txs_in:
print(' - ' + disassemble(inp.script))
print('Output Scripts:')
for out in tx.txs_out:
print(' - ' + disassemble(out.script))
def test_nulldata(self):
# note that because chr() is used samples with length > 255 will not work
for sample in [b'test', b'me', b'a', b'39qEwuwyb2cAX38MFtrNzvq3KV9hSNov3q']:
sample_script = b'\x6a' + chr(len(sample)).encode() + sample
nd = ScriptNulldata(sample)
self.assertEqual(nd.nulldata, sample)
self.assertEqual(nd.script(), sample_script)
nd2 = ScriptNulldata.from_script(sample_script)
self.assertEqual(nd.nulldata, nd2.nulldata)
out = TxOut(1, nd.script())
tx = Tx(0, [], [out]) # ensure we can create a tx
self.assertEqual(nd.script(), tools.compile(tools.disassemble(nd.script()))) # convert between asm and back to ensure no bugs with compilation
def address_h160_from_script (script):
s = disassemble(script).split(' ')
if 'OP_HASH160' in s:
p = s.index('OP_HASH160')
if len(s) > p+1:
return h2b(s[p+1])
elif 'OP_CHECKSIG' in s:
p = s.index('OP_CHECKSIG')
if len(s[p-1]) in (66, 130):
# public key
sec = h2b(s[p-1])
return public_pair_to_hash160_sec(sec_to_public_pair(sec), is_sec_compressed(sec))
else:
logger.warn("Can't parse address from script: %s" % (s))
return None
def test_nulldata(self):
OP_RETURN = tools.compile("OP_RETURN")
# note that because chr() is used samples with length > 255 will not work
for sample in [b'test', b'me', b'a', b'39qEwuwyb2cAX38MFtrNzvq3KV9hSNov3q', b'', b'0'*80]:
sample_script = OP_RETURN + tools.bin_script([sample])
nd = ScriptNulldata(sample)
self.assertEqual(nd.nulldata, sample)
self.assertEqual(nd.script(), sample_script)
nd2 = ScriptNulldata.from_script(sample_script)
self.assertEqual(nd.nulldata, nd2.nulldata)
out = TxOut(1, nd.script())
# ensure we can create a tx
Tx(0, [], [out])
# convert between asm and back to ensure no bugs with compilation
self.assertEqual(nd.script(), tools.compile(tools.disassemble(nd.script())))
def test_tx_7e0114e93f903892b4dff5526a8cab674b2825fd715c4a95f852a1aed634a0f6(self):
# this tx is from testnet. We add an extra "OP_0" to the end
# we need to check that the script is being disassembled correctly
script = h2b("0047304402201f994ca49451bc764fd090f31adb2fa4381b91f967dc05a6f538d4d1baaa83cd022"
"06ef3ad06de7890bc4130b4f57401412ca94897ea19b646f794a4472375351c1f0147304402201f"
"994ca49451bc764fd090f31adb2fa4381b91f967dc05a6f538d4d1baaa83cd02204655e9eccac41"
"2407dfc3e5753a0f2ac605e41c7eb91630dc67137f2d8081c3a014d0b0152410479be667ef9dcbb"
"ac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e110"
"8a8fd17b448a68554199c47d08ffb10d4b84104c6047f9441ed7d6d3045406e95c07cd85c778e4b"
"8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a"
"950cfe52a4104f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f938"
"8f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e6724104e493dbf1c10d8"
"0f3581e4904930b1404cc6c13900ee0758474fa94abe8c4cd1351ed993ea0d455b75642e2098ea5"
"1448d967ae33bfbdfe40cfe97bdc4773992254ae00")
d1 = disassemble(script).split()
self.assertEqual(len(d1), 5)
self.assertEqual(d1[-1], "OP_0")
def test_tx_7e0114e93f903892b4dff5526a8cab674b2825fd715c4a95f852a1aed634a0f6(self):
# this tx is from testnet. We add an extra "OP_0" to the end
# we need to check that the script is being disassembled correctly
script = h2b("0047304402201f994ca49451bc764fd090f31adb2fa4381b91f967dc05a6f538d4d1baaa83cd022"
"06ef3ad06de7890bc4130b4f57401412ca94897ea19b646f794a4472375351c1f0147304402201f"
"994ca49451bc764fd090f31adb2fa4381b91f967dc05a6f538d4d1baaa83cd02204655e9eccac41"
"2407dfc3e5753a0f2ac605e41c7eb91630dc67137f2d8081c3a014d0b0152410479be667ef9dcbb"
"ac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e110"
"8a8fd17b448a68554199c47d08ffb10d4b84104c6047f9441ed7d6d3045406e95c07cd85c778e4b"
"8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a"
"950cfe52a4104f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f938"
"8f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e6724104e493dbf1c10d8"
"0f3581e4904930b1404cc6c13900ee0758474fa94abe8c4cd1351ed993ea0d455b75642e2098ea5"
"1448d967ae33bfbdfe40cfe97bdc4773992254ae00")
d1 = disassemble(script).split()
self.assertEqual(len(d1), 5)
self.assertEqual(d1[-1], "OP_0")
def fixup_old_nlocktimes(self):
"""Fixup data from old format nlocktimes files
Older nlocktimes files do not contain explicit prevout_signatures, prevout_scripts or
prevout_script_types. Detect this and extract them from the raw transaction to make the
txdata look consistent to the rest of the code. Note that segwit is not being handled
here because old style nlocktimes predate segwit
"""
for txdata in self.txdata:
tx = Tx.from_hex(txdata['tx'])
NON_SEGWIT_P2SH = 10
txdata['prevout_script_types'] = [NON_SEGWIT_P2SH] * len(tx.txs_in)
txdata['prevout_signatures'] = []
txdata['prevout_scripts'] = []
for txin in tx.txs_in:
dis = disassemble(txin.script).split()
_, ga_signature, _, redeem_script = dis
txdata['prevout_signatures'].append(ga_signature[1:-1])
txdata['prevout_scripts'].append(redeem_script[1:-1])
def test_nulldata(self):
OP_RETURN = tools.compile("OP_RETURN")
# note that because chr() is used samples with length > 255 will not work
for sample in [
b'test', b'me', b'a', b'39qEwuwyb2cAX38MFtrNzvq3KV9hSNov3q',
b'', b'0' * 80
]:
sample_script = OP_RETURN + tools.bin_script([sample])
nd = ScriptNulldata(sample)
self.assertEqual(nd.nulldata, sample)
self.assertEqual(nd.script(), sample_script)
nd2 = ScriptNulldata.from_script(sample_script)
self.assertEqual(nd.nulldata, nd2.nulldata)
out = TxOut(1, nd.script())
# ensure we can create a tx
Tx(0, [], [out])
# convert between asm and back to ensure no bugs with compilation
self.assertEqual(nd.script(),
tools.compile(tools.disassemble(nd.script())))
def fixup_old_nlocktimes(self):
"""Fixup data from old format nlocktimes files
Older nlocktimes files do not contain explicit prevout_signatures, prevout_scripts or
prevout_script_types. Detect this and extract them from the raw transaction to make the
txdata look consistent to the rest of the code. Note that segwit is not being handled
here because old style nlocktimes predate segwit
"""
for txdata in self.txdata:
if 'prevout_signatures' not in txdata:
tx = txutil.from_hex(txdata['tx'])
txdata['prevout_script_types'] = []
txdata['prevout_signatures'] = []
txdata['prevout_scripts'] = []
for i in range(wally.tx_get_num_inputs(tx)):
dis = disassemble(wally.tx_get_input_script(tx, i)).split()
_, ga_signature, _, redeem_script = dis
txdata['prevout_signatures'].append(ga_signature[1:-1])
txdata['prevout_scripts'].append(redeem_script[1:-1])
txdata['prevout_script_types'].append(
gaconstants.P2SH_FORTIFIED_OUT)
def get_hash160_data(tx, output_index):
out = tx.txs_out[output_index]
return h2b(tools.disassemble(out.script)[18:58])
def _get_nulldata_output(tx):
for index, out in enumerate(tx.txs_out):
if re.match("^OP_RETURN", tools.disassemble(out.script)):
return index, out
return None, None
def _get_nulldata_output(tx):
for index, out in enumerate(tx.txs_out):
if re.match("^OP_RETURN", tools.disassemble(out.script)):
return index, out
return None, None
def get_nulldata(tx):
out = get_nulldata_output(tx)
if not out:
raise exceptions.NoNulldataOutput(tx)
return h2b(tools.disassemble(out.script)[10:])
def main():
print(disassemble(h2b(sys.argv[1])))
def test_validate(self):
# block 80971
block_80971_cs = h2b("00000000001126456C67A1F5F0FF0268F53B4F22E0531DC70C7B69746AF69DAC")
block_80971_data = h2b(
"01000000950A1631FB9FAC411DFB173487B9E18018B7C6F7147E78C06258410000000000A881352F97F14B"
"F191B54915AE124E051B8FE6C3922C5082B34EAD503000FC34D891974CED66471B4016850A040100"
"0000010000000000000000000000000000000000000000000000000000000000000000FFFFFFFF080"
"4ED66471B02C301FFFFFFFF0100F2052A01000000434104CB6B6B4EADC96C7D08B21B29D0ADA5F29F937"
"8978CABDB602B8B65DA08C8A93CAAB46F5ABD59889BAC704925942DD77A2116D10E0274CAD944C71D3D1A"
"670570AC0000000001000000018C55ED829F16A4E43902940D3D33005264606D5F7D555B5F67EE4C033390"
"C2EB010000008A47304402202D1BF606648EDCDB124C1254930852D99188E1231715031CBEAEA80CCFD2B39A"
"02201FA9D6EE7A1763580E342474FC1AEF59B0468F98479953437F525063E25675DE014104A01F763CFBF5E518"
"C628939158AF3DC0CAAC35C4BA7BC1CE8B7E634E8CDC44E15F0296B250282BD649BAA8398D199F2424FCDCD88"
"D3A9ED186E4FD3CB9BF57CFFFFFFFFF02404B4C00000000001976A9148156FF75BEF24B35ACCE3C05289A241"
"1E1B0E57988AC00AA38DF010000001976A914BC7E692A5FFE95A596712F5ED83393B3002E452E88AC000000"
"0001000000019C97AFDF6C9A31FFA86D71EA79A079001E2B59EE408FD418498219400639AC0A010000008B4"
"830450220363CFFAE09599397B21E6D8A8073FB1DFBE06B6ACDD0F2F7D3FEA86CA9C3F605022100FA255A6ED"
"23FD825C759EF1A885A31CAD0989606CA8A3A16657D50FE3CEF5828014104FF444BAC08308B9EC97F56A652A"
"D8866E0BA804DA97868909999566CB377F4A2C8F1000E83B496868F3A282E1A34DF78565B65C15C3FA21A076"
"3FD81A3DFBBB6FFFFFFFF02C05EECDE010000001976A914588554E6CC64E7343D77117DA7E01357A6111B798"
"8AC404B4C00000000001976A914CA6EB218592F289999F13916EE32829AD587DBC588AC00000000010000000"
"1BEF5C9225CB9FE3DEF929423FA36AAD9980B9D6F8F3070001ACF3A5FB389A69F000000004A493046022100F"
"B23B1E2F2FB8B96E04D220D385346290A9349F89BBBC5C225D5A56D931F8A8E022100F298EB28294B90C1BAF"
"319DAB713E7CA721AAADD8FCC15F849DE7B0A6CF5412101FFFFFFFF0100F2052A010000001976A9146DDEA80"
"71439951115469D0D2E2B80ECBCDD48DB88AC00000000"
)
# block 80974
block_80974_cs = h2b("0000000000089F7910F6755C10EA2795EC368A29B435D80770AD78493A6FECF1")
block_80974_data = h2b(
"010000007480150B299A16BBCE5CCDB1D1BBC65CFC5893B01E6619107C55200000000000790"
"0A2B203D24C69710AB6A94BEB937E1B1ADD64C2327E268D8C3E5F8B41DBED8796974CED66471B204C3247030"
"1000000010000000000000000000000000000000000000000000000000000000000000000FFFFFFFF0804ED6"
"6471B024001FFFFFFFF0100F2052A010000004341045FEE68BAB9915C4EDCA4C680420ED28BBC369ED84D48A"
"C178E1F5F7EEAC455BBE270DABA06802145854B5E29F0A7F816E2DF906E0FE4F6D5B4C9B92940E4F0EDAC000"
"000000100000001F7B30415D1A7BF6DB91CB2A272767C6799D721A4178AA328E0D77C199CB3B57F010000008"
"A4730440220556F61B84F16E637836D2E74B8CB784DE40C28FE3EF93CCB7406504EE9C7CAA5022043BD4749D"
"4F3F7F831AC696748AD8D8E79AEB4A1C539E742AA3256910FC88E170141049A414D94345712893A828DE57B4C"
"2054E2F596CDCA9D0B4451BA1CA5F8847830B9BE6E196450E6ABB21C540EA31BE310271AA00A49ED0BA930743"
"D1ED465BAD0FFFFFFFF0200E1F505000000001976A914529A63393D63E980ACE6FA885C5A89E4F27AA08988AC"
"C0ADA41A000000001976A9145D17976537F308865ED533CCCFDD76558CA3C8F088AC000000000100000001651"
"48D894D3922EF5FFDA962BE26016635C933D470C8B0AB7618E869E3F70E3C000000008B48304502207F5779EB"
"F4834FEAEFF4D250898324EB5C0833B16D7AF4C1CB0F66F50FCF6E85022100B78A65377FD018281E77285EFC3"
"1E5B9BA7CB7E20E015CF6B7FA3E4A466DD195014104072AD79E0AA38C05FA33DD185F84C17F611E58A8658CE"
"996D8B04395B99C7BE36529CAB7606900A0CD5A7AEBC6B233EA8E0FE60943054C63620E05E5B85F0426FFFFF"
"FFF02404B4C00000000001976A914D4CAA8447532CA8EE4C80A1AE1D230A01E22BFDB88AC8013A0DE0100000"
"01976A9149661A79AE1F6D487AF3420C13E649D6DF3747FC288AC00000000"
)
block_80971 = Block.parse(io.BytesIO(block_80971_data))
block_80974 = Block.parse(io.BytesIO(block_80974_data))
tx_db = {tx.hash(): tx for tx in block_80971.txs}
def tx_out_for_hash_index_f(tx_hash, tx_out_idx):
tx = tx_db.get(tx_hash)
return tx.txs_out[tx_out_idx]
tx_to_validate = block_80974.txs[2]
self.assertEqual(
"OP_DUP OP_HASH160 d4caa8447532ca8ee4c80a1ae1d230a01e22bfdb OP_EQUALVERIFY OP_CHECKSIG",
tools.disassemble(tx_to_validate.txs_out[0].script),
)
self.assertEqual(tx_to_validate.id(), "7c4f5385050c18aa8df2ba50da566bbab68635999cc99b75124863da1594195b")
tx_to_validate.validate(tx_out_for_hash_index_f)
# now, let's corrupt the Tx and see what happens
tx_out = tx_to_validate.txs_out[1]
disassembly = tools.disassemble(tx_out.script)
tx_out.script = tools.compile(disassembly)
tx_to_validate.validate(tx_out_for_hash_index_f)
disassembly = disassembly.replace(
"9661a79ae1f6d487af3420c13e649d6df3747fc2", "9661a79ae1f6d487af3420c13e649d6df3747fc3"
)
tx_out.script = tools.compile(disassembly)
with self.assertRaises(ValidationFailureError) as cm:
tx_to_validate.validate(tx_out_for_hash_index_f)
exception = cm.exception
self.assertEqual(
exception.args[0],
"Tx 3c0ef7e369e81876abb0c870d433c935660126be62a9fd5fef22394d898d1465 TxIn index 0 script did not verify",
)
def test_validate_two_inputs(self):
def tx_from_b64(h):
f = io.BytesIO(binascii.a2b_base64(h.encode("utf8")))
return Tx.parse(f)
# c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d
# This is the one we're going to validate. It has inputs from
# tx_1 = b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983
# and tx_2 = 72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd
#
TX_0_HEX = """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"""
TX_1_HEX = """AQAAAAEL3YmFDcZpf4SH7uN1IBmMoBd4OhmTp4EAQ8A0ZQ3tiwAAAACKRzBEAiA4Fkl8lkJS
eLtWHsp1j0h7y0KKFmqxhDR0CK0HnmZWBQIgDSTDenor3zbNqTs+FApeDl8DKCz1xGQCJQN0
/sp00VABQQQzSNc33wdDXA/F9y9/hAR88q6Se6vRCHEC7dYgbIp1pgxqGzrWXQroGkQLhnAb
n/fDhUoVbCgM/UHXYmjXlhdO/////wI3HGlfEQAAABl2qRRM+dhUVUjeAlb0jEsHJrFClGGS
Z4isMAYVCgAAAAAZdqkUgnSLXoYTeOKFFRdtLYxWcGZ2Ht2IrAAAAAA=
"""
TX_2_HEX = """AQAAAAFDjBbw61AYUWMx+3moZ2vb9dvLKydOSFIwcfBTjG0QSgEAAACKRzBEAiA5WWKhR48O
I60ZDCXnOru/FH6NvuTGhRLggjbpJB2dhgIgKp0FFL0ClSCxxqGjYneDinvgROGSw6DtVtvf
lrhaom8BQQR50YjAg1e5qRkP4ER29ec5jKfzk3DHJhS7Si0sEbvNIJMfjjbZfZWtJi15wHZh
uHh4e3G6SWMdJLHH5pgbseFh/////wLPE5deAAAAABl2qRSmRdbMvv5fEbgFD1YktaBU9zQT
W4iswJ7mBQAAAAAZdqkU4E5+Is4tr+8bPU6ELYHSvz/Ng0eIrAAAAAA=
"""
tx_0 = tx_from_b64(TX_0_HEX)
self.assertEqual(
tx_0.id(),
"c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d")
tx_1 = tx_from_b64(TX_1_HEX)
self.assertEqual(
tx_1.id(),
"b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983")
tx_2 = tx_from_b64(TX_2_HEX)
self.assertEqual(
tx_2.id(),
"72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd")
TX_DB = {tx.hash(): tx for tx in [tx_0, tx_1, tx_2]}
tx_to_validate = tx_0
self.assertEqual(
"OP_DUP OP_HASH160 [2d74eede5a76b7fc0c4aebea6e27ce4a3f7f92f9] OP_EQUALVERIFY OP_CHECKSIG",
tools.disassemble(tx_to_validate.txs_out[0].script))
self.assertEqual(
tx_to_validate.id(),
"c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d")
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
# now let's mess with signatures
disassembly = tools.disassemble(tx_to_validate.txs_in[0].script)
tx_to_validate.txs_in[0].script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
disassembly = disassembly.replace("353fb6fcfbce09", "353fb6fcfbce19")
tx_to_validate.txs_in[0].script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(0))
tx_to_validate = tx_from_b64(TX_0_HEX)
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
disassembly = tools.disassemble(tx_to_validate.txs_in[1].script)
disassembly = disassembly.replace("960c258ffb494d2859f",
"960d258ffb494d2859f")
tx_to_validate.txs_in[1].script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(1))
# futz with signature on tx_1
tx_to_validate = tx_from_b64(TX_0_HEX)
original_tx_hash = tx_1.hash()
disassembly = tools.disassemble(tx_1.txs_out[0].script)
disassembly = disassembly.replace(
"4cf9d8545548de0256f48c4b0726b14294619267",
"4cf9d8545548de1256f48c4b0726b14294619267")
tx_1.txs_out[0].script = tools.compile(disassembly)
TX_DB[original_tx_hash] = tx_1
tx_to_validate.unspents_from_db(TX_DB, ignore_missing=True)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(0, ))
# fix it up again
TX_DB[original_tx_hash] = tx_from_b64(TX_1_HEX)
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
# futz with signature on tx_2
tx_to_validate = tx_from_b64(TX_0_HEX)
original_tx_hash = tx_2.hash()
disassembly = tools.disassemble(tx_2.txs_out[0].script)
disassembly = disassembly.replace(
"a645d6ccbefe5f11b8050f5624b5a054f734135b",
"a665d6ccbefe5f11b8050f5624b5a054f734135b")
tx_2.txs_out[0].script = tools.compile(disassembly)
TX_DB[original_tx_hash] = tx_2
tx_to_validate.unspents_from_db(TX_DB, ignore_missing=True)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(1))
# fix it up again
TX_DB[original_tx_hash] = tx_from_b64(TX_2_HEX)
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
def get_nulldata(tx):
index, out = _get_nulldata_output(tx)
if not out:
raise exceptions.NoNulldataOutput(tx)
data = h2b(tools.disassemble(out.script)[10:])
return index, data
def __repr__(self):
script_text = tools.disassemble(self.script)
return "<ScriptChannelDeposit: {0}".format(script_text)
def check(s):
b1 = compile(s)
s1 = disassemble(b1)
b2 = compile(s1)
self.assertEqual(s, s1)
self.assertEqual(b1, b2)
def main():
print(disassemble(h2b(sys.argv[1])))
def get_hash160_data(tx, output_index):
out = tx.txs_out[output_index]
return h2b(tools.disassemble(out.script)[18:58])
def check(s):
b1 = compile(s)
s1 = disassemble(b1)
b2 = compile(s1)
self.assertEqual(s, s1)
self.assertEqual(b1, b2)
def get_nulldata(tx):
index, out = _get_nulldata_output(tx)
if not out:
raise exceptions.NoNulldataOutput(tx)
data = h2b(tools.disassemble(out.script)[10:])
return index, data
def to_asm(self):
return tools.disassemble(self.script)
def __str__(self):
return '%s<%s mbtc "%s">' % (self.__class__.__name__,
satoshi_to_mbtc(self.coin_value),
tools.disassemble(self.script))
def test_validate_two_inputs(self):
def tx_from_b64(h):
f = io.BytesIO(binascii.a2b_base64(h.encode("utf8")))
return Tx.parse(f)
# c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d
# This is the one we're going to validate. It has inputs from
# tx_1 = b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983
# and tx_2 = 72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd
#
TX_0_HEX = """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"""
TX_1_HEX = """AQAAAAEL3YmFDcZpf4SH7uN1IBmMoBd4OhmTp4EAQ8A0ZQ3tiwAAAACKRzBEAiA4Fkl8lkJS
eLtWHsp1j0h7y0KKFmqxhDR0CK0HnmZWBQIgDSTDenor3zbNqTs+FApeDl8DKCz1xGQCJQN0
/sp00VABQQQzSNc33wdDXA/F9y9/hAR88q6Se6vRCHEC7dYgbIp1pgxqGzrWXQroGkQLhnAb
n/fDhUoVbCgM/UHXYmjXlhdO/////wI3HGlfEQAAABl2qRRM+dhUVUjeAlb0jEsHJrFClGGS
Z4isMAYVCgAAAAAZdqkUgnSLXoYTeOKFFRdtLYxWcGZ2Ht2IrAAAAAA=
"""
TX_2_HEX = """AQAAAAFDjBbw61AYUWMx+3moZ2vb9dvLKydOSFIwcfBTjG0QSgEAAACKRzBEAiA5WWKhR48O
I60ZDCXnOru/FH6NvuTGhRLggjbpJB2dhgIgKp0FFL0ClSCxxqGjYneDinvgROGSw6DtVtvf
lrhaom8BQQR50YjAg1e5qRkP4ER29ec5jKfzk3DHJhS7Si0sEbvNIJMfjjbZfZWtJi15wHZh
uHh4e3G6SWMdJLHH5pgbseFh/////wLPE5deAAAAABl2qRSmRdbMvv5fEbgFD1YktaBU9zQT
W4iswJ7mBQAAAAAZdqkU4E5+Is4tr+8bPU6ELYHSvz/Ng0eIrAAAAAA=
"""
tx_0 = tx_from_b64(TX_0_HEX)
self.assertEqual(tx_0.id(), "c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d")
tx_1 = tx_from_b64(TX_1_HEX)
self.assertEqual(tx_1.id(), "b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983")
tx_2 = tx_from_b64(TX_2_HEX)
self.assertEqual(tx_2.id(), "72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd")
TX_DB = {tx.hash(): tx for tx in [tx_0, tx_1, tx_2]}
def tx_out_for_hash_index_f(tx_hash, tx_out_idx):
tx = TX_DB.get(tx_hash)
return tx.txs_out[tx_out_idx]
tx_to_validate = tx_0
self.assertEqual(
"OP_DUP OP_HASH160 2d74eede5a76b7fc0c4aebea6e27ce4a3f7f92f9 OP_EQUALVERIFY OP_CHECKSIG",
tools.disassemble(tx_to_validate.txs_out[0].script),
)
self.assertEqual(tx_to_validate.id(), "c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d")
tx_to_validate.validate(tx_out_for_hash_index_f)
# now let's mess with signatures
disassembly = tools.disassemble(tx_to_validate.txs_in[0].script)
tx_to_validate.txs_in[0].script = tools.compile(disassembly)
tx_to_validate.validate(tx_out_for_hash_index_f)
disassembly = disassembly.replace("353fb6fcfbce09", "353fb6fcfbce19")
tx_to_validate.txs_in[0].script = tools.compile(disassembly)
with self.assertRaises(ValidationFailureError) as cm:
tx_to_validate.validate(tx_out_for_hash_index_f)
exception = cm.exception
self.assertEqual(
exception.args[0],
"Tx b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983 TxIn index 0 script did not verify",
)
tx_to_validate = tx_from_b64(TX_0_HEX)
tx_to_validate.validate(tx_out_for_hash_index_f)
disassembly = tools.disassemble(tx_to_validate.txs_in[1].script)
disassembly = disassembly.replace("960c258ffb494d2859f", "960d258ffb494d2859f")
tx_to_validate.txs_in[1].script = tools.compile(disassembly)
with self.assertRaises(ValidationFailureError) as cm:
tx_to_validate.validate(tx_out_for_hash_index_f)
exception = cm.exception
self.assertEqual(
exception.args[0],
"Tx 72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd TxIn index 0 script did not verify",
)
# futz with signature on tx_1
tx_to_validate = tx_from_b64(TX_0_HEX)
original_tx_hash = tx_1.hash()
disassembly = tools.disassemble(tx_1.txs_out[0].script)
disassembly = disassembly.replace(
"4cf9d8545548de0256f48c4b0726b14294619267", "4cf9d8545548de1256f48c4b0726b14294619267"
)
tx_1.txs_out[0].script = tools.compile(disassembly)
TX_DB[original_tx_hash] = tx_1
with self.assertRaises(ValidationFailureError) as cm:
tx_to_validate.validate(tx_out_for_hash_index_f)
exception = cm.exception
self.assertEqual(
exception.args[0],
"Tx b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983 TxIn index 0 script did not verify",
)
# fix it up again
TX_DB[original_tx_hash] = tx_from_b64(TX_1_HEX)
tx_to_validate.validate(tx_out_for_hash_index_f)
# futz with signature on tx_2
tx_to_validate = tx_from_b64(TX_0_HEX)
original_tx_hash = tx_2.hash()
disassembly = tools.disassemble(tx_2.txs_out[0].script)
disassembly = disassembly.replace(
"a645d6ccbefe5f11b8050f5624b5a054f734135b", "a665d6ccbefe5f11b8050f5624b5a054f734135b"
)
tx_2.txs_out[0].script = tools.compile(disassembly)
TX_DB[original_tx_hash] = tx_2
with self.assertRaises(ValidationFailureError) as cm:
tx_to_validate.validate(tx_out_for_hash_index_f)
exception = cm.exception
self.assertEqual(
exception.args[0],
"Tx 72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd TxIn index 0 script did not verify",
)
# fix it up again
TX_DB[original_tx_hash] = tx_from_b64(TX_2_HEX)
tx_to_validate.validate(tx_out_for_hash_index_f)
# Get data from fields
mytxid = form.getvalue('ref')
#public = "Hurray! Vitus has written to blockchain, Gh we are present!"
if not mytxid:
exit("TXT must have value")
## Get the transaction id
#if(len(argv) is not 2):
# exit("usage: python3 retrieve-op-return.py TRANSACTION_ID")
txid = unhexlify(mytxid.encode('utf8'))[::-1]
## Retrieve the transaction
try:
tx = get_tx(txid)
except:
exit("Transaction could not be retrieved")
## Find the OP_RETURN in the message and decode it
message = ""
for tx_out in tx.txs_out:
script = disassemble(tx_out.script)
if ('OP_RETURN' in script):
message = unhexlify(script[10:]).decode('utf8')
if message:
print(message)
else:
exit("Sorry, OP_RETURN message found in the transaction")
def test_validate(self):
# block 80971
block_80971_cs = h2b(
'00000000001126456C67A1F5F0FF0268F53B4F22E0531DC70C7B69746AF69DAC')
block_80971_data = h2b('01000000950A1631FB9FAC411DFB173487B9E18018B7C6F7147E78C06258410000000000A881352F97F14B'\
'F191B54915AE124E051B8FE6C3922C5082B34EAD503000FC34D891974CED66471B4016850A040100'\
'0000010000000000000000000000000000000000000000000000000000000000000000FFFFFFFF080'\
'4ED66471B02C301FFFFFFFF0100F2052A01000000434104CB6B6B4EADC96C7D08B21B29D0ADA5F29F937'\
'8978CABDB602B8B65DA08C8A93CAAB46F5ABD59889BAC704925942DD77A2116D10E0274CAD944C71D3D1A'\
'670570AC0000000001000000018C55ED829F16A4E43902940D3D33005264606D5F7D555B5F67EE4C033390'\
'C2EB010000008A47304402202D1BF606648EDCDB124C1254930852D99188E1231715031CBEAEA80CCFD2B39A'\
'02201FA9D6EE7A1763580E342474FC1AEF59B0468F98479953437F525063E25675DE014104A01F763CFBF5E518'\
'C628939158AF3DC0CAAC35C4BA7BC1CE8B7E634E8CDC44E15F0296B250282BD649BAA8398D199F2424FCDCD88'\
'D3A9ED186E4FD3CB9BF57CFFFFFFFFF02404B4C00000000001976A9148156FF75BEF24B35ACCE3C05289A241'\
'1E1B0E57988AC00AA38DF010000001976A914BC7E692A5FFE95A596712F5ED83393B3002E452E88AC000000'\
'0001000000019C97AFDF6C9A31FFA86D71EA79A079001E2B59EE408FD418498219400639AC0A010000008B4'\
'830450220363CFFAE09599397B21E6D8A8073FB1DFBE06B6ACDD0F2F7D3FEA86CA9C3F605022100FA255A6ED'\
'23FD825C759EF1A885A31CAD0989606CA8A3A16657D50FE3CEF5828014104FF444BAC08308B9EC97F56A652A'\
'D8866E0BA804DA97868909999566CB377F4A2C8F1000E83B496868F3A282E1A34DF78565B65C15C3FA21A076'\
'3FD81A3DFBBB6FFFFFFFF02C05EECDE010000001976A914588554E6CC64E7343D77117DA7E01357A6111B798'\
'8AC404B4C00000000001976A914CA6EB218592F289999F13916EE32829AD587DBC588AC00000000010000000'\
'1BEF5C9225CB9FE3DEF929423FA36AAD9980B9D6F8F3070001ACF3A5FB389A69F000000004A493046022100F'\
'B23B1E2F2FB8B96E04D220D385346290A9349F89BBBC5C225D5A56D931F8A8E022100F298EB28294B90C1BAF'\
'319DAB713E7CA721AAADD8FCC15F849DE7B0A6CF5412101FFFFFFFF0100F2052A010000001976A9146DDEA80'\
'71439951115469D0D2E2B80ECBCDD48DB88AC00000000')
# block 80974
block_80974_cs = h2b(
'0000000000089F7910F6755C10EA2795EC368A29B435D80770AD78493A6FECF1')
block_80974_data = h2b('010000007480150B299A16BBCE5CCDB1D1BBC65CFC5893B01E6619107C55200000000000790'\
'0A2B203D24C69710AB6A94BEB937E1B1ADD64C2327E268D8C3E5F8B41DBED8796974CED66471B204C3247030'\
'1000000010000000000000000000000000000000000000000000000000000000000000000FFFFFFFF0804ED6'\
'6471B024001FFFFFFFF0100F2052A010000004341045FEE68BAB9915C4EDCA4C680420ED28BBC369ED84D48A'\
'C178E1F5F7EEAC455BBE270DABA06802145854B5E29F0A7F816E2DF906E0FE4F6D5B4C9B92940E4F0EDAC000'\
'000000100000001F7B30415D1A7BF6DB91CB2A272767C6799D721A4178AA328E0D77C199CB3B57F010000008'\
'A4730440220556F61B84F16E637836D2E74B8CB784DE40C28FE3EF93CCB7406504EE9C7CAA5022043BD4749D'\
'4F3F7F831AC696748AD8D8E79AEB4A1C539E742AA3256910FC88E170141049A414D94345712893A828DE57B4C'\
'2054E2F596CDCA9D0B4451BA1CA5F8847830B9BE6E196450E6ABB21C540EA31BE310271AA00A49ED0BA930743'\
'D1ED465BAD0FFFFFFFF0200E1F505000000001976A914529A63393D63E980ACE6FA885C5A89E4F27AA08988AC'\
'C0ADA41A000000001976A9145D17976537F308865ED533CCCFDD76558CA3C8F088AC000000000100000001651'\
'48D894D3922EF5FFDA962BE26016635C933D470C8B0AB7618E869E3F70E3C000000008B48304502207F5779EB'\
'F4834FEAEFF4D250898324EB5C0833B16D7AF4C1CB0F66F50FCF6E85022100B78A65377FD018281E77285EFC3'\
'1E5B9BA7CB7E20E015CF6B7FA3E4A466DD195014104072AD79E0AA38C05FA33DD185F84C17F611E58A8658CE'\
'996D8B04395B99C7BE36529CAB7606900A0CD5A7AEBC6B233EA8E0FE60943054C63620E05E5B85F0426FFFFF'\
'FFF02404B4C00000000001976A914D4CAA8447532CA8EE4C80A1AE1D230A01E22BFDB88AC8013A0DE0100000'\
'01976A9149661A79AE1F6D487AF3420C13E649D6DF3747FC288AC00000000')
block_80971 = Block.parse(io.BytesIO(block_80971_data))
block_80974 = Block.parse(io.BytesIO(block_80974_data))
tx_db = {tx.hash(): tx for tx in block_80971.txs}
tx_to_validate = block_80974.txs[2]
self.assertEqual(
"OP_DUP OP_HASH160 [d4caa8447532ca8ee4c80a1ae1d230a01e22bfdb] OP_EQUALVERIFY OP_CHECKSIG",
tools.disassemble(tx_to_validate.txs_out[0].script))
self.assertEqual(
tx_to_validate.id(),
"7c4f5385050c18aa8df2ba50da566bbab68635999cc99b75124863da1594195b")
tx_to_validate.unspents_from_db(tx_db)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
# now, let's corrupt the Tx and see what happens
tx_out = tx_to_validate.txs_out[1]
disassembly = tools.disassemble(tx_out.script)
tx_out.script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
disassembly = disassembly.replace(
"9661a79ae1f6d487af3420c13e649d6df3747fc2",
"9661a79ae1f6d487af3420c13e649d6df3747fc3")
tx_out.script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(0))
def __str__(self):
if self.is_coinbase():
return 'TransactionIn<COINBASE: %s>' % b2h(self.script)
return 'TransactionIn<%s[%d] "%s">' % (b2h_rev(
self.previous_hash), self.previous_index, disassemble(self.script))
def to_asm(self):
return tools.disassemble(self.script)
def get_nulldata_output(tx):
for out in tx.txs_out:
if re.match("^OP_RETURN", tools.disassemble(out.script)):
return out
return None
