def lookup_unspent_outputs(bitcoin_addresses):
conn = HTTPConnection('blockchain.info')
conn.request('GET', '/unspent?active={}'.format('|'.join(bitcoin_addresses)))
result = json.loads(conn.getresponse().read().decode('utf8'))
unspent = defaultdict(list)
for u in result['unspent_outputs']:
program_bytes = Bitcoin.hexstring_to_bytes(u['script'], reverse=False)
scriptPubKey, _ = script.Script.unserialize(program_bytes, len(program_bytes))
address = None
# Try to extract the address from the scriptpubkey program
if len(scriptPubKey.program) == 6 and \
scriptPubKey.program[0][0] == script.OP_DUP and scriptPubKey.program[1][0] == script.OP_HASH160 and \
scriptPubKey.program[2][0] == 20 and \
scriptPubKey.program[4][0] == script.OP_EQUALVERIFY and scriptPubKey.program[5][0] == script.OP_CHECKSIG:
address = scriptPubKey.program[3]
elif len(scriptPubKey.program) == 3 and scriptPubKey.program[2][0] == script.OP_CHECKSIG:
if scriptPubKey.program[2][0] in (0x04, 0x03, 0x02):
address = base58.decode_to_bytes(addressgen.generate_address(scriptPubKey.program[1], version=0))[-24:-4]
if address is not None:
i = 0
while address[i] == 0:
i += 1
address = '1' + ('1' * i) + addressgen.base58_check(address, version=0)
unspent[address].append(u)
return unspent
def lookup_unspent_outputs(bitcoin_addresses):
conn = HTTPConnection('blockchain.info')
conn.request('GET',
'/unspent?active={}'.format('|'.join(bitcoin_addresses)))
result = json.loads(conn.getresponse().read().decode('utf8'))
unspent = defaultdict(list)
for u in result['unspent_outputs']:
program_bytes = Bitcoin.hexstring_to_bytes(u['script'], reverse=False)
scriptPubKey, _ = script.Script.unserialize(program_bytes,
len(program_bytes))
address = None
# Try to extract the address from the scriptpubkey program
if len(scriptPubKey.program) == 6 and \
scriptPubKey.program[0][0] == script.OP_DUP and scriptPubKey.program[1][0] == script.OP_HASH160 and \
scriptPubKey.program[2][0] == 20 and \
scriptPubKey.program[4][0] == script.OP_EQUALVERIFY and scriptPubKey.program[5][0] == script.OP_CHECKSIG:
address = scriptPubKey.program[3]
elif len(scriptPubKey.program
) == 3 and scriptPubKey.program[2][0] == script.OP_CHECKSIG:
if scriptPubKey.program[2][0] in (0x04, 0x03, 0x02):
address = base58.decode_to_bytes(
addressgen.generate_address(scriptPubKey.program[1],
version=0))[-24:-4]
if address is not None:
i = 0
while address[i] == 0:
i += 1
address = '1' + ('1' * i) + addressgen.base58_check(address,
version=0)
unspent[address].append(u)
return unspent
def getBitcoinAddress(self):
if self.address is None:
return None
j = 0
while j < len(self.address) and self.address[j] == 0:
j += 1
return ('1' + ('1' * j) + addressgen.base58_check(self.address))
def getBitcoinAddress(self):
j = 0
while self.address[j] == 0:
j += 1
return ('1' + ('1' * j) + addressgen.base58_check(self.address)) if self.address is not None else None
