def __init__(self, scriptpubkey, block_height: int, reward,
wtx_merkle_root):
inputs = []
inputs.append(Input("0" * 64, int("f" * 8, 16),
"%016x" % block_height))
outputs = [
Output(int(reward * 10**8), scriptpubkey),
Output(0, "6a%02x%s" % (len(wtx_merkle_root) * 2, wtx_merkle_root))
]
super().__init__(inputs, outputs, 0)
def from_dict(dict):
inputs = [
Input(input['txid'], input['vout'], input['scriptsig'])
for input in dict['inputs']
]
outputs = [
Output(output['value'], output['scriptpubkey'])
for output in dict['outputs']
]
return Transaction(inputs, outputs, dict['locktime'])
def deserialize_sw_transaction(stx: str):
cur = 0
version = int(reverse_bytes(stx[cur:cur + 8]), 16)
cur += 8
cur += 4
inputs_count = int(stx[cur:cur + 2], 16)
cur += 2
inputs = []
for i in range(inputs_count):
txid = reverse_bytes(stx[cur:cur + 64])
cur += 64
vout = int(reverse_bytes(stx[cur:cur + 8]), 16)
cur += 8
len = int(stx[cur:cur + 2], 16)
cur += 2
scriptsig = stx[cur:cur + len * 2]
cur += len * 2
cur += 8 # skipping sequence
inputs.append(Input(txid, vout, scriptsig))
outputs_count = int(stx[cur:cur + 2], 16)
cur += 2
outputs = []
for i in range(outputs_count):
value = int(reverse_bytes(stx[cur:cur + 16]), 16)
cur += 16
len = int(stx[cur:cur + 2], 16)
cur += 2
scriptpubkey = stx[cur:cur + len * 2]
cur += len * 2
outputs.append(Output(value, scriptpubkey))
witness_count = int(stx[cur:cur + 2], 16)
cur += 2
witness = []
for i in range(witness_count):
len = int(stx[cur:cur + 2], 16)
cur += 2
wit = stx[cur:cur + len * 2]
cur += len * 2
witness.append(wit)
locktime = int(reverse_bytes(stx[cur:cur + 8]), 16)
return Transaction(inputs,
outputs,
locktime,
version=version,
witness=witness)
def test_wtxid_for_nonsw_transaction(self):
inputs = [
Input(
"fc9e4f9c334d55c1dc535bd691a1c159b0f7314c54745522257a905e18a56779",
1,
"47304402206a2eb16b7b92051d0fa38c133e67684ed064effada1d7f925c842da401d4f22702201f196b10e6e4b4a9fff948e5c5d71ec5da53e90529c8dbd122bff2b1d21dc8a90121039b7bcd0824b9a9164f7ba098408e63e5b7e3cf90835cceb19868f54f8961a825"
)
]
outputs = [
Output(2207563,
"76a914db4d1141d0048b1ed15839d0b7a4c488cd368b0e88ac")
]
tx = Transaction(inputs, outputs, locktime=0)
self.assertEqual(tx.txid, tx.wtxid)
def from_dict(dict):
version = dict['version']
inputs = [
Input(input['txid'], input['vout'], input['scriptsig'])
for input in dict['inputs']
]
outputs = [
Output(output['value'], output['scriptpubkey'])
for output in dict['outputs']
]
witness = [wint for wint in dict['witness']]
return Transaction(inputs,
outputs,
dict['locktime'],
version=version,
witness=witness)
def test_raw_transaction_creation(self):
inputs = [
Input(
"fc9e4f9c334d55c1dc535bd691a1c159b0f7314c54745522257a905e18a56779",
1,
"47304402206a2eb16b7b92051d0fa38c133e67684ed064effada1d7f925c842da401d4f22702201f196b10e6e4b4a9fff948e5c5d71ec5da53e90529c8dbd122bff2b1d21dc8a90121039b7bcd0824b9a9164f7ba098408e63e5b7e3cf90835cceb19868f54f8961a825"
)
]
outputs = [
Output(2207563,
"76a914db4d1141d0048b1ed15839d0b7a4c488cd368b0e88ac")
]
tx = Transaction(inputs, outputs, locktime=0)
raw_tx = "01000000017967a5185e907a25225574544c31f7b059c1a191d65b53dcc1554d339c4f9efc010000006a47304402206a2eb16b7b92051d0fa38c133e67684ed064effada1d7f925c842da401d4f22702201f196b10e6e4b4a9fff948e5c5d71ec5da53e90529c8dbd122bff2b1d21dc8a90121039b7bcd0824b9a9164f7ba098408e63e5b7e3cf90835cceb19868f54f8961a825ffffffff014baf2100000000001976a914db4d1141d0048b1ed15839d0b7a4c488cd368b0e88ac00000000"
self.assertEqual(raw_tx, Serializer.serialize_transaction(tx))
def __init__(self, scriptpubkey, block_height: int):
inputs = []
inputs.append(Input("0" * 64, int("f" * 8, 16),
"%016x" % block_height))
outputs = [Output(5000000000, scriptpubkey)]
super().__init__(inputs, outputs, 0)