def _parse_transaction(self, tx, block_height=None, get_input_values=True):
t = Transaction.parse_hex(tx['hex'], strict=False, network=self.network)
t.confirmations = tx.get('confirmations')
t.block_hash = tx.get('blockhash')
t.status = 'unconfirmed'
for i in t.inputs:
if i.prev_txid == b'\x00' * 32:
i.script_type = 'coinbase'
continue
if get_input_values:
txi = self.proxy.getrawtransaction(i.prev_txid.hex(), 1)
i.value = int(round(float(txi['vout'][i.output_n_int]['value']) / self.network.denominator))
for o in t.outputs:
o.spent = None
if not block_height and t.block_hash:
block_height = self.proxy.getblock(t.block_hash, 1)['height']
t.block_height = block_height
if not t.confirmations and block_height is not None:
if not self.latest_block:
self.latest_block = self.blockcount()
t.confirmations = (self.latest_block - block_height) + 1
if t.confirmations or block_height:
t.status = 'confirmed'
t.verified = True
t.version = tx['version'].to_bytes(4, 'big')
t.version_int = tx['version']
t.date = None if 'time' not in tx else datetime.utcfromtimestamp(tx['time'])
t.update_totals()
return t
def _parse_transaction(self, tx, block_height=None, get_input_values=True):
t = Transaction.parse_hex(tx['hex'],
strict=False,
network=self.network)
t.confirmations = None if 'confirmations' not in tx else tx[
'confirmations']
if t.confirmations or block_height:
t.status = 'confirmed'
t.verified = True
for i in t.inputs:
if i.prev_txid == b'\x00' * 32:
i.script_type = 'coinbase'
continue
if get_input_values:
txi = self.proxy.getrawtransaction(i.prev_txid.hex(), 1)
i.value = int(
round(
float(txi['vout'][i.output_n_int]['value']) /
self.network.denominator))
for o in t.outputs:
o.spent = None
t.block_height = block_height
t.version = tx['version'].to_bytes(4, 'big')
t.date = datetime.utcfromtimestamp(tx['blocktime'])
t.update_totals()
return t
def gettransaction(self, txid, block_height=None):
res = self.compose_request('get_tx', txid)
tx = res['data']
rawtx = tx['tx_hex']
t = Transaction.parse_hex(rawtx, strict=False, network=self.network)
input_total = 0
output_total = 0
if not t.coinbase:
for n, i in enumerate(t.inputs):
i.value = int(round(float(tx['inputs'][n]['value']) * self.units, 0))
input_total += i.value
for o in t.outputs:
o.spent = None
output_total += o.value
if not t.block_height and tx['confirmations']:
t.block_height = self.getblock(tx['blockhash'], False, 1, 1)['height']
t.block_hash = tx['blockhash']
t.rawtx = bytes.fromhex(rawtx)
t.size = tx['size']
t.network = self.network
t.locktime = tx['locktime']
t.input_total = input_total
t.output_total = output_total
t.fee = 0
if t.input_total:
t.fee = t.input_total - t.output_total
t.confirmations = tx['confirmations']
if tx['confirmations']:
t.status = 'confirmed'
t.date = datetime.utcfromtimestamp(tx['time'])
else:
t.status = 'unconfirmed'
t.date = None
return t
def _parse_transaction(self, tx, strict=True):
status = 'unconfirmed'
if tx['confirmations']:
status = 'confirmed'
t = Transaction.parse_hex(tx['hex'],
strict=False,
network=self.network)
if not t.txid == tx['hash']:
if strict:
raise ClientError('Received transaction has different txid')
else:
t.txid = tx['hash']
_logger.warning('Received transaction has different txid')
t.locktime = tx['locktime']
t.network = self.network
t.fee = tx['fee']
t.date = datetime.utcfromtimestamp(tx['time']) if tx['time'] else None
t.confirmations = tx['confirmations']
t.block_height = tx['height'] if tx['height'] > 0 else None
t.block_hash = tx['block']
t.status = status
if not t.coinbase:
for i in t.inputs:
i.value = tx['inputs'][t.inputs.index(i)]['coin']['value']
for o in t.outputs:
o.spent = None
t.update_totals()
return t
def gettransaction(self, txid):
variables = {'id': txid, 'hex': None}
tx = self.compose_request(path_type='explorer', variables=variables)
t = Transaction.parse_hex(tx['hex'], strict=False, network=self.network)
variables = {'t': txid}
tx_api = self.compose_request('txinfo', path_type='api', variables=variables)
for n, i in enumerate(t.inputs):
if i.script_type != 'coinbase':
i.value = int(round(tx_api['inputs'][n]['amount'] * self.units, 0))
else:
i.value = 0
t.coinbase = True
for n, o in enumerate(t.outputs):
o.spent = None
if tx['confirmations']:
t.status = 'confirmed'
else:
t.status = 'unconfirmed'
t.date = datetime.utcfromtimestamp(tx['time'])
t.block_height = tx_api['block']
t.block_hash = tx['blockhash']
t.confirmations = tx['confirmations']
t.rawtx = bytes.fromhex(tx['hex'])
t.size = tx['size']
t.network = self.network
t.locktime = tx['locktime']
t.version = tx['version'].to_bytes(4, 'big')
t.output_total = int(round(tx_api['total_output'] * self.units, 0))
t.input_total = t.output_total
t.fee = 0
if t.input_total:
t.fee = t.input_total - t.output_total
return t
def sendrawtransaction(self, rawtx):
res = self.compose_request('broadcast',
variables={'tx': rawtx},
method='post')
txid = ''
if 'success' in res and res['success']:
t = Transaction.parse_hex(rawtx,
strict=False,
network=self.network)
txid = t.txid
return {'txid': txid, 'response_dict': res}
def gettransaction(self, txid):
tx = self.compose_request('txs',
txid,
variables={'includeHex': 'true'})
t = Transaction.parse_hex(tx['hex'],
strict=False,
network=self.network)
if tx['confirmations']:
t.status = 'confirmed'
t.date = datetime.strptime(tx['confirmed'][:19],
"%Y-%m-%dT%H:%M:%S")
else:
t.status = 'unconfirmed'
t.confirmations = tx['confirmations']
t.block_height = tx['block_height'] if tx['block_height'] > 0 else None
t.fee = tx['fees']
t.rawtx = bytes.fromhex(tx['hex'])
t.size = int(len(tx['hex']) / 2)
t.network = self.network
t.input_total = 0
if len(t.inputs) != len(tx['inputs']):
raise ClientError(
"Invalid number of inputs provided. Raw tx: %d, blockcypher: %d"
% (len(t.inputs), len(tx['inputs'])))
for n, i in enumerate(t.inputs):
if not t.coinbase and not (
tx['inputs'][n]['output_index'] == i.output_n_int
and tx['inputs'][n]['prev_hash'] == i.prev_txid.hex()):
raise ClientError(
"Transaction inputs do not match raw transaction")
if 'output_value' in tx['inputs'][n]:
if not t.coinbase:
i.value = tx['inputs'][n]['output_value']
t.input_total += i.value
if len(t.outputs) != len(tx['outputs']):
raise ClientError(
"Invalid number of outputs provided. Raw tx: %d, blockcypher: %d"
% (len(t.outputs), len(tx['outputs'])))
for n, o in enumerate(t.outputs):
if 'spent_by' in tx['outputs'][n]:
o.spent = True
o.spending_txid = tx['outputs'][n]['spent_by']
return t
def gettransaction(self, txid, latest_block=None):
tx = self.compose_request('rawtx', txid)
rawtx = self.getrawtransaction(txid)
t = Transaction.parse_hex(rawtx, strict=False, network=self.network)
input_total = 0
for n, i in enumerate(t.inputs):
if 'prev_out' in tx['inputs'][n]:
i.value = 0 if not tx['inputs'][n]['prev_out'] else tx[
'inputs'][n]['prev_out']['value']
input_total += i.value
for n, o in enumerate(t.outputs):
o.spent = tx['out'][n]['spent']
if 'block_height' in tx and tx['block_height']:
if not latest_block:
latest_block = self.blockcount()
t.status = 'confirmed'
t.date = datetime.utcfromtimestamp(tx['time'])
t.block_height = tx['block_height']
t.confirmations = 1
if latest_block > t.block_height:
t.confirmations = latest_block - t.block_height
else:
t.status = 'unconfirmed'
t.confirmations = 0
t.date = None
t.rawtx = bytes.fromhex(rawtx)
t.size = tx['size']
t.network_name = self.network
t.locktime = tx['lock_time']
t.version_int = tx['ver']
t.version = tx['ver'].to_bytes(4, 'big')
t.input_total = input_total
t.fee = 0
if t.input_total:
t.fee = t.input_total - t.output_total
return t
s = Script(sc)
print("\nScript %s" % s)
print("Evaluate: %s" % s.evaluate())
print("Stack after evaluation: %s" % s.stack)
script = '493046022100cf4d7571dd47a4d47f5cb767d54d6702530a3555726b27b6ac56117f5e7808fe0221008cbb42233bb04d7f28a' \
'715cf7c938e238afde90207e9d103dd9018e12cb7180e03'
s = Script.parse(script)
print("\nScript hex %s" % script)
print("Parsed script: %s" % s)
print(
"\nVerify input 0 of transaction c8ea60ae943d84a8620a4ce3d3e12813293cdc48f6811dbc1c30578dfd1b2717"
)
traw = '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'
t = Transaction.parse_hex(traw)
i = t.inputs[0]
transaction_hash_input_0 = transaction_hash = t.signature_hash(i.index_n)
s = Script.parse(i.unlocking_script + i.script_code)
print("Validation script input 0: %s" % s)
print("Evaluate: %s" % s.evaluate(transaction_hash_input_0))
print("\nCreate redeemscript:")
key1 = '5JruagvxNLXTnkksyLMfgFgf3CagJ3Ekxu5oGxpTm5mPfTAPez3'
key2 = '5JX3qAwDEEaapvLXRfbXRMSiyRgRSW9WjgxeyJQWwBugbudCwsk'
key3 = '5JjHVMwJdjPEPQhq34WMUhzLcEd4SD7HgZktEh8WHstWcCLRceV'
keylist = [Key(k) for k in [key1, key2, key3]]
print("Keys: %s" % keylist)
redeemscript = Script(keys=keylist, sigs_required=2, script_types=['multisig'])
print("Redeemscript hex: %s" % redeemscript.serialize().hex())
print("Redeemscript: %s" % redeemscript)