def get_btc_address():
# Check for X-Real-IP header added by proxy
ip_address = request.headers.get("X-Real-IP") or request.remote_addr
address = r.get(redis_prefix + ip_address)
if address is None:
n = r.incr(redis_prefix + index_key)
address = deterministic.electrum_address(mpk, n)
r.setex(redis_prefix + ip_address, address, timeout)
return address
def bci_scan_addresses(mpk, gap_limit=50, addresses_per_request=50):
n = 0
empty_count = 0
utxo_list = []
#Address mapping is a dict of address:idx
address_mapping = {}
while True:
serialized_addresses = ""
# Send multiple addresses at once to bci, to limit number of requests.
for i in range(addresses_per_request):
n += 1
address = deterministic.electrum_address(mpk, n)
address_mapping[address] = n
serialized_addresses += address
if i < addresses_per_request:
serialized_addresses += "|"
req = requests.get("http://blockchain.info/unspent?active=" + serialized_addresses)
if req.status_code == 200:
bci_utxo = req.json()['unspent_outputs']
for utxo in bci_utxo:
address = script_extract_address(unhexlify(utxo['script']))
address_index = address_mapping[address]
utxo_list.append({"address_index": address_index,
"address": address,
"value": utxo['value'],
"tx_hash": utxo['tx_hash'],
"n": utxo['tx_output_n']})
# bci returns status code 500, when there are no unspent outputs.
else:
empty_count += addresses_per_request
if empty_count > gap_limit:
break
return utxo_list
MIN_TX_VALUE = 10000 # 0.0001 BTC
MAX_TX_VALUE = 500000000 # 5 BTC
UNSIGNED_FILE = 'data/unsigned.dat'
print "ElectrumToBIP32 create.py (ONLINE)"
# Discover unspent outputs
discovered = []
electrum_mpk = raw_input('\nEnter MPK for Electrum wallet: ')
value_discovered = 0
for chain in (0, 1):
gap = 0
key_index = 0
print "\nDiscovery for Electrum {0} chain:".format('receiving' if chain == 0 else 'change')
while gap < ELECTRUM_GAP_LIMIT:
address = electrum_address(electrum_mpk, key_index, chain)
print "Checking %s for history..." % address,
if history(address):
gap = 0
unspent_outputs = unspent(address)
if unspent_outputs:
value = sum([unspent_output['value'] for unspent_output in unspent_outputs])
value_btc = float(value) / SATOSHI_PER_BITCOIN
print "{0:,f} BTC found".format(value_btc)
d = {"chain": chain, "key_index": key_index, "address": address,
"unspent_outputs": unspent_outputs, "value": value}
discovered.append(d)
value_discovered += value
else:
print "all spent"
else:
