def unserialize(data, as_coinbase=False):
k = len(data)
tr = Transaction()
tr.version = struct.unpack('<L', data[:4])[0]
num_inputs, data = Bitcoin.unserialize_variable_int(data[4:])
for i in range(num_inputs):
txn_input, data = TransactionInput.unserialize(data, as_coinbase=as_coinbase)
tr.inputs.append(txn_input)
num_outputs, data = Bitcoin.unserialize_variable_int(data)
for i in range(num_outputs):
try:
txn_output, data = TransactionOutput.unserialize(data)
except:
raise
tr.outputs.append(txn_output)
tr.lock_time = struct.unpack("<L", data[:4])[0]
tr.real_size = k - len(data) + 4
if any(i.signed and (i.signed_hash_type & SIGHASH_ANYONECANPAY) != 0 for i in tr.inputs):
tr.type = Transaction.TRANSACTION_TYPE_PAYMENT_ANYONECANPAY
return tr, data[4:]
def unserialize(data):
txn_output = TransactionOutput()
txn_output.amount = struct.unpack("<Q", data[:8])[0]
script_size, data = Bitcoin.unserialize_variable_int(data[8:])
txn_output.scriptPubKey, data = Script.unserialize(data, script_size)
txn_output.extractAddressFromOutputScript()
return txn_output, data
def handle_addr(self, payload):
count, payload = Bitcoin.unserialize_variable_int(payload)
for i in range(min(count, 100)):
addr, services, when, payload = Bitcoin.unserialize_network_address(
payload, with_timestamp=self.peer_version >= 31402)
self.bitcoin_network.discovered_peer_address(
'{}:{}'.format(*addr), when, services)
def unserialize(data, as_coinbase=False):
txn_input = TransactionInput()
txn_input.tx_hash = data[:32]
txn_input.n = struct.unpack("<L", data[32:36])[0]
script_size, data = Bitcoin.unserialize_variable_int(data[36:])
txn_input.scriptSig, data = Script.unserialize(data, script_size, as_coinbase=as_coinbase)
txn_input.extractAddressFromInputScript()
txn_input.sequence = struct.unpack("<L", data[:4])[0]
return txn_input, data[4:]
def handle_inv(self, payload):
count, payload = Bitcoin.unserialize_variable_int(payload)
for i in range(count):
inv, payload = Bitcoin.unserialize_inv(payload)
if inv['type'] == BitcoinNetwork.MSG_ERROR:
continue
elif inv['type'] == BitcoinNetwork.MSG_TX:
#print('got inv for tx {}'.format(Bitcoin.bytes_to_hexstring(inv['hash'])))
self.known_transactions.add((inv['hash'], time.time()))
elif inv['type'] == BitcoinNetwork.MSG_BLOCK:
#print('got inv for block {}'.format(Bitcoin.bytes_to_hexstring(inv['hash'])))
pass
def handle_inv(self, payload):
count, payload = Bitcoin.unserialize_variable_int(payload)
for i in range(count):
inv, payload = Bitcoin.unserialize_inv(payload)
if inv['type'] == BitcoinNetwork.MSG_ERROR:
continue
elif inv['type'] == BitcoinNetwork.MSG_TX:
#print('got inv for tx {}'.format(Bitcoin.bytes_to_hexstring(inv['hash'])))
self.known_transactions.add((inv['hash'], time.time()))
elif inv['type'] == BitcoinNetwork.MSG_BLOCK:
#print('got inv for block {}'.format(Bitcoin.bytes_to_hexstring(inv['hash'])))
pass
def handle_addr(self, payload):
count, payload = Bitcoin.unserialize_variable_int(payload)
for i in range(min(count, 100)):
addr, services, when, payload = Bitcoin.unserialize_network_address(payload, with_timestamp=self.peer_version >= 31402)
self.bitcoin_network.discovered_peer_address('{}:{}'.format(*addr), when, services)
