def bitcoind_export(self):
descriptor = self.descriptor()
export_range = (self.address_index,
self.address_index + self.export_size)
rpc = WalletRPC('bitboy')
rpc.export(descriptor, export_range, False) # FIXME: change=False
# FIXME: hackily update address index based on unspent descriptors ...
# this could miss spent transactions ...
# FIXME: skips exports between old and new index
unspent = rpc.rpc().listunspent(0, 9999999, [], True)
for u in unspent:
desc = u['desc']
ai = int(desc[desc.find('/') + 1:desc.find(']')])
self.address_index = max(self.address_index, ai + 1)
self.save()
def open(cls):
with open(cls.filename, 'r') as f:
raw_json = f.read()
wallet = cls.deserialize(raw_json)
# load associated Bitcoin Core watch-only wallet
WalletRPC('').load_wallet('bitboy')
return wallet
def create(cls, xpub=None):
if isfile(cls.filename):
raise OSError("wallet file already exists")
xpub = HDPublicKey.parse(BytesIO(xpub.encode()))
WalletRPC('').create_watchonly_wallet('bitboy')
wallet = cls(xpub)
wallet.bitcoind_export()
wallet.save()
return wallet
def balance(self):
unconfirmed_balance = 0
confirmed_balance = 0
unspent = WalletRPC('bitboy').listunspent(0, 9999999, [], True)
for u in unspent:
if u['confirmations'] > 0:
confirmed_balance += u['amount']
else:
unconfirmed_balance += u['amount']
return unconfirmed_balance, confirmed_balance
def add_signature():
if request.method == 'GET':
return render_template('add-signature.html')
else:
wallet = Wallet.open()
script_sig = Script.parse(
BytesIO(bytes.fromhex(request.json['signature'])))
tx = Tx.parse(BytesIO(bytes.fromhex(wallet.tx_data['tx'])))
for i, tx_in in enumerate(tx.tx_ins):
if tx_in.script_sig.cmds == []:
tx.tx_ins[i].script_sig = script_sig
print('filled in script sig')
break
# FIXME: for some reason script_sig is None ...
if all([tx_in.script_sig.cmds != [] for tx_in in tx.tx_ins]):
rpc = WalletRPC('bitboy')
print(tx.serialize().hex())
rpc.broadcast(tx.serialize().hex())
print('broadcasted')
# wallet.tx_data = None
# FIXME
return tx.id()
wallet.save()
return 'ok'
def prepare_tx(self, address, amount, fee):
# FIXME: amount -> satoshis
rpc = WalletRPC('bitboy')
# create unfunded transaction
tx_ins = []
tx_outs = [
{
address: sat_to_btc(amount)
},
]
rawtx = rpc.create_raw_transaction(tx_ins, tx_outs)
# fund it
change_address = self.consume_address()
fundedtx = rpc.fund_raw_transaction(rawtx, change_address)
# input metadata
input_meta = []
decoded = rpc.rpc().decoderawtransaction(fundedtx)
for tx_in in decoded['vin']:
print('iterate input')
tx_id = tx_in['txid']
tx_index = tx_in['vout']
prev_tx = rpc.rpc().getrawtransaction(tx_id, True)
script_pubkey = encode_varstr(
bytes.fromhex(
prev_tx['vout'][tx_index]['scriptPubKey']['hex'])).hex()
input_address = prev_tx['vout'][tx_index]['scriptPubKey'][
'addresses'][0]
pubkey, path = self.lookup_pubkey(input_address)
derivation_path = f"m/69'/{path[2:]}"
print('PATH', derivation_path)
input_meta = [{
'script_pubkey': script_pubkey,
'derivation_path': derivation_path
}]
# output metadata
output_meta = []
for tx_out in decoded['vout']:
print('iterate output')
address = tx_out['scriptPubKey']['addresses'][0]
pubkey, path = self.lookup_pubkey(address)
if path is None:
output_meta.append({'change': False})
else:
derivation_path = f"m/69'/{path[2:]}"
output_meta.append({
'change': True,
'derivation_path': derivation_path
})
return fundedtx, input_meta, output_meta
def transactions(self):
return WalletRPC('bitboy').get_transactions()
def unspent(self):
return WalletRPC('bitboy').get_unspent()
def balance(self):
return WalletRPC('bitboy').get_balance()