def output_index_for_address(self, address_or_hash160):
""" Returns the index of the output in this transaction
that pays to the provided address.
Args:
address_or_hash160 (str or bytes): If a string, a
Base58Check encoded address. If bytes, the hash160
of the public key.
Returns:
int: The index of the corresponding output or None.
"""
if isinstance(address_or_hash160, str):
ver, h160_bytes = address_to_key_hash(address_or_hash160)
h160 = bytes_to_str(h160_bytes)
elif isinstance(address_or_hash160, bytes):
h160 = bytes_to_str(address_or_hash160)
else:
raise TypeError("address_or_hash160 can only be bytes or str")
rv = None
for i, o in enumerate(self.outputs):
scr = o.script
if scr.is_p2pkh() or scr.is_p2sh():
if scr.get_hash160()[2:] == h160:
rv = i
break
return rv
def broadcast_transaction(self, transaction):
""" Broadcasts a transaction to the Bitcoin network
Args:
transaction (bytes or str): serialized, signed transaction
Returns:
str: The transaction ID
"""
if isinstance(transaction, bytes):
signed_hex = bytes_to_str(transaction)
elif isinstance(transaction, Transaction):
signed_hex = bytes_to_str(bytes(transaction))
elif isinstance(transaction, str):
signed_hex = transaction
else:
raise TypeError(
"transaction must be one of: bytes, str, Transaction.")
data = {"signed_hex": signed_hex}
r = self._request("POST", "transactions/send", json=data)
if r.status_code == 200:
j = r.json()
return j["transaction_hash"]
elif r.status_code == 400:
j = r.json()
# TODO: Change this to some more meaningful exception type
raise exceptions.TransactionBroadcastError(j['message'])
else:
# Some other status code... should never happen.
raise exceptions.TransactionBroadcastError(
"Unexpected response: %r" % r.status_code)
def broadcast_transaction(self, transaction):
""" Broadcasts a transaction to the Bitcoin network
Args:
transaction (bytes or str): serialized, signed transaction
Returns:
str: The transaction ID
"""
if isinstance(transaction, bytes):
signed_hex = bytes_to_str(transaction)
elif isinstance(transaction, Transaction):
signed_hex = bytes_to_str(bytes(transaction))
elif isinstance(transaction, str):
signed_hex = transaction
else:
raise TypeError(
"transaction must be one of: bytes, str, Transaction.")
data = {"signed_hex": signed_hex}
r = self._request("POST", "transactions/send", json=data)
if r.status_code == 200:
j = r.json()
return j["transaction_hash"]
elif r.status_code == 400:
j = r.json()
# TODO: Change this to some more meaningful exception type
raise exceptions.TransactionBroadcastError(j['message'])
else:
# Some other status code... should never happen.
raise exceptions.TransactionBroadcastError(
"Unexpected response: %r" % r.status_code)
def build_push_str(s):
""" Creates a script to push s onto the stack.
Args:
s (bytes): bytes to be pushed onto the stack.
Returns:
b (bytes): Serialized bytes containing the appropriate PUSHDATA
op for s.
"""
ls = len(s)
hexstr = bytes_to_str(s)
pd_index = 0
if ls < Script.BTC_OPCODE_TABLE['OP_PUSHDATA1']:
return bytes([ls]) + s
# Determine how many bytes are required for the length
elif ls < 0xff:
pd_index = 1
elif ls < 0xffff:
pd_index = 2
else:
pd_index = 4
p = bytes([Script.BTC_OPCODE_TABLE['OP_PUSHDATA%d' % (pd_index)]])
p += bytes([ls]) + s
return p
def post(self):
"""Initialize the payment channel handshake.
Params (query):
refund_tx (string): half-signed serialized refund transaction
Response (json) 2xx:
refund_tx (string): fully-signed serialized refund transaction
"""
try:
params = request.values.to_dict()
# Validate parameters
if 'refund_tx' not in params:
raise BadParametersError('No refund provided.')
# Initialize the payment channel
refund_tx = Transaction.from_hex(params['refund_tx'])
self.server.initialize_handshake(refund_tx)
# Respond with the fully-signed refund transaction
success = {'refund_tx': bytes_to_str(bytes(refund_tx))}
return jsonify(success)
except Exception as e:
# Catch payment exceptions and send error response to client
raise BadRequest(str(e))
def __str__(self):
""" Gives the hex-encoded serialization of the header.
Returns:
str: hex-encoded string.
"""
return bytes_to_str(bytes(self))
def to_hex(self):
""" Generates a hex encoding of the serialized transaction.
Returns:
str: Hex-encoded serialization.
"""
return bytes_to_str(bytes(self))
def to_hex(self):
""" Generates a hex encoding of the serialized transaction.
Returns:
str: Hex-encoded serialization.
"""
return bytes_to_str(bytes(self))
def __str__(self):
""" Gives the hex-encoded serialization of the header.
Returns:
str: hex-encoded string.
"""
return bytes_to_str(bytes(self))
def create(self, request, format='json'):
"""Initialize the payment channel handshake.
Params (query):
refund_tx (string): half-signed serialized refund transaction
Response (json) 2xx:
refund_tx (string): fully-signed serialized refund transaction
"""
try:
params = request.data
# Validate parameters
if 'refund_tx' not in params:
raise BadParametersError('No refund provided.')
# Initialize the payment channel
refund_tx = Transaction.from_hex(params['refund_tx'])
payment_server.initialize_handshake(refund_tx)
# Respond with the fully-signed refund transaction
success = {'refund_tx': bytes_to_str(bytes(refund_tx))}
return Response(success)
except Exception as e:
error = {'error': str(e)}
return Response(error, status=status.HTTP_400_BAD_REQUEST)
def __str__(self):
""" Returns a human readable formatting of this input.
Returns:
s (str): A string containing the human readable input.
"""
return ("CoinbaseInput(" + "Outpoint: %s " % (self.outpoint) +
"Outpoint Index: 0x%08x " % (self.outpoint_index) +
"Script: %s " % (bytes_to_str(self.script)) +
"Sequence: 0x%08x)" % (self.sequence_num))
def __str__(self):
""" Returns a human readable formatting of this input.
Returns:
s (str): A string containing the human readable input.
"""
return (
"CoinbaseInput(" +
"Outpoint: %s " % (self.outpoint) +
"Outpoint Index: 0x%08x " % (self.outpoint_index) +
"Script: %s " % (bytes_to_str(self.script)) +
"Sequence: 0x%08x)" % (self.sequence_num))
def build_p2pkh(hash160_key):
""" Builds a Pay-to-Public-Key-Hash script.
Args:
hash160_key (bytes): the RIPEMD-160 hash of the public key
in internal byte order.
Returns:
scr (Script): a serializable Script object containing the
p2pkh script.
"""
return Script('OP_DUP OP_HASH160 0x%s OP_EQUALVERIFY OP_CHECKSIG' %
bytes_to_str(hash160_key))
def build_p2sh(hash160_key):
""" Builds a Pay-to-Script-Hash script.
Args:
hash160_key (bytes): the RIPEMD-160 hash of the script in
internal byte order.
Returns:
scr (Script): a serializable Script object containing the
p2sh script.
"""
return Script('OP_HASH160 0x%s OP_EQUAL' % bytes_to_str(hash160_key))
def _disassemble(self, raw):
""" Disassembles a raw script (in bytes) to human-readable text
using the opcodes in BTC_OPCODE_TABLE. The disassembled string
is stored in self.script.
Args:
raw (bytes): A byte stream containing the script to be
disassembled.
"""
script = []
while raw:
op, raw = raw[0], raw[1:]
if op == 0x00:
script.append('OP_0')
elif op < 0x4b:
script.append('0x%s' % (bytes_to_str(raw[0:op])))
raw = raw[op:]
else:
opcode = Script.BTC_OPCODE_REV_TABLE[op]
if opcode in ['OP_PUSHDATA1', 'OP_PUSHDATA2', 'OP_PUSHDATA4']:
pushlen = int(opcode[-1])
datalen = 0
if pushlen == 1:
datalen, raw = raw[0], raw[1:]
elif pushlen == 2:
datalen, raw = struct.unpack("<H", raw[0:2])[0], raw[2:]
elif pushlen == 4:
datalen, raw = struct.unpack("<I", raw[0:4])[0], raw[4:]
script.append('OP_PUSHDATA%d 0x%x 0x%s' %
(pushlen,
datalen,
bytes_to_str(raw[:datalen])))
raw = raw[datalen:]
else:
script.append(opcode)
self.script = " ".join(script)
def broadcast_transaction(self, transaction):
""" Broadcasts a transaction to the Bitcoin network
Args:
transaction (bytes or str): serialized, signed transaction
Returns:
str: The transaction ID
"""
if isinstance(transaction, bytes):
signed_hex = bytes_to_str(transaction)
elif isinstance(transaction, Transaction):
signed_hex = bytes_to_str(bytes(transaction))
elif isinstance(transaction, str):
signed_hex = transaction
else:
raise TypeError(
"transaction must be one of: bytes, str, Transaction.")
data = {"tx": signed_hex}
r = self._request("POST", "/txs/push", True, json=data)
j = r.json()
return j["tx"]["hash"]
def broadcast_transaction(self, transaction):
""" Broadcasts a transaction to the Bitcoin network
Args:
transaction (bytes or str): serialized, signed transaction
Returns:
str: The transaction ID
"""
if isinstance(transaction, bytes):
signed_hex = bytes_to_str(transaction)
elif isinstance(transaction, Transaction):
signed_hex = bytes_to_str(bytes(transaction))
elif isinstance(transaction, str):
signed_hex = transaction
else:
raise TypeError(
"transaction must be one of: bytes, str, Transaction.")
data = {"tx": signed_hex}
r = self._request("POST", "/txs/push", True, json=data)
j = r.json()
return j["tx"]["hash"]
def __str__(self):
""" Creates a human-readable string representation of the script.
Returns:
s (str): String representation of the script
"""
script = ""
self._check_tokenized()
for t in self._tokens:
if isinstance(t, bytes):
script += "0x%s " % bytes_to_str(t)
else:
script += t + " "
return script.rstrip()
def __str__(self):
""" Creates a human-readable string representation of the script.
Returns:
s (str): String representation of the script
"""
script = ""
self._check_tokenized()
for t in self._tokens:
if isinstance(t, bytes):
script += "0x%s " % bytes_to_str(t)
else:
script += t + " "
return script.rstrip()
def __str__(self):
""" Returns a hex string in RPC order
"""
return bytes_to_str(self._bytes[::-1])
from two1.lib.bitcoin.txn import TransactionOutput
from two1.lib.bitcoin.script import Script
from two1.lib.bitcoin.utils import address_to_key_hash
from two1.lib.bitcoin.utils import bytes_to_str
address = '137KzxStaf6vw5yGujViK3Tkigoix9N3v7'
_, hash160 = address_to_key_hash(address)
out_script = Script.build_p2pkh(hash160)
out1 = TransactionOutput(value=100000, script=out_script)
# Print the script
print("%s" % (out_script))
# Print the address
print("Addresses = %r" % (out1.get_addresses()))
# Print the value
print("Value: %d" % (out1.value))
# Serialize
out1_bytes = bytes(out1)
print(bytes_to_str(out1_bytes))
def __str__(self):
""" Returns a hex string in RPC order
"""
return bytes_to_str(self._bytes[::-1])
from two1.lib.bitcoin.crypto import PublicKey
from two1.lib.wallet import Wallet
from two1.lib.bitcoin.utils import bytes_to_str
wallet = Wallet()
pubkey = wallet.get_payout_public_key()
compressed = pubkey.compressed_bytes
str = bytes_to_str(pubkey.compressed_bytes).upper()
print("Payout public key: %s" % (str))