def cosigner_can_sign(self, tx, cosigner_xpub):
xpub_set = set([])
for txin in tx.inputs():
for x_pubkey in txin['x_pubkeys']:
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
xpub_set.add(xpub)
return cosigner_xpub in xpub_set
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = xpub_from_pubkey(
'standard', bfh(x_pubkey))
s = []
return self._make_node_path(xpub, s)
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = BIP32PublicKey(bfh(x_pubkey), NULL_DERIVATION, Net.COIN)
xpub = xpub.to_extended_key_string()
s = []
node = self.ckd_public.deserialize(xpub)
return self.types.HDNodePathType(node=node, address_n=s)
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = xpub_from_pubkey(
'standard', bfh(x_pubkey))
s = []
node = self.ckd_public.deserialize(xpub)
return self.types.HDNodePathType(node=node,
address_n=s)
def sign_transaction(self, tx, password):
if tx.is_complete():
return
# path of the xpubs that are involved
xpub_path = {}
for txin in tx.inputs():
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
tx_hash = txin['prevout_hash']
for x_pubkey in x_pubkeys:
if not is_xpubkey(x_pubkey):
continue
xpub, s = parse_xpubkey(x_pubkey)
if xpub == self.get_master_public_key():
xpub_path[xpub] = self.get_derivation()
self.plugin.sign_transaction(self, tx, xpub_path)
def tx_inputs(self, tx, for_sig=False):
inputs = []
for txin in tx.inputs():
txinputtype = self.types.TxInputType()
if txin['type'] == 'coinbase':
prev_hash = "\0" * 32
prev_index = 0xffffffff # signed int -1
else:
if for_sig:
x_pubkeys = txin['x_pubkeys']
if len(x_pubkeys) == 1:
x_pubkey = x_pubkeys[0]
xpub, s = parse_xpubkey(x_pubkey)
xpub_n = self.client_class.expand_path(
self.xpub_path[xpub])
txinputtype.address_n.extend(xpub_n + s)
txinputtype.script_type = self.types.SPENDADDRESS
else:
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = xpub_from_pubkey(
'standard', bfh(x_pubkey))
s = []
node = self.ckd_public.deserialize(xpub)
return self.types.HDNodePathType(node=node,
address_n=s)
pubkeys = [f(x) for x in x_pubkeys]
multisig = self.types.MultisigRedeemScriptType(
pubkeys=pubkeys,
signatures=[
bfh(x)[:-1] if x else b''
for x in txin.get('signatures')
],
m=txin.get('num_sig'),
)
script_type = self.types.SPENDMULTISIG
txinputtype = self.types.TxInputType(
script_type=script_type, multisig=multisig)
# find which key is mine
for x_pubkey in x_pubkeys:
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
if xpub in self.xpub_path:
xpub_n = self.client_class.expand_path(
self.xpub_path[xpub])
txinputtype.address_n.extend(xpub_n + s)
break
prev_hash = unhexlify(txin['prevout_hash'])
prev_index = txin['prevout_n']
if 'value' in txin:
txinputtype.amount = txin['value']
txinputtype.prev_hash = prev_hash
txinputtype.prev_index = prev_index
if 'scriptSig' in txin:
script_sig = bfh(txin['scriptSig'])
txinputtype.script_sig = script_sig
txinputtype.sequence = txin.get('sequence', 0xffffffff - 1)
inputs.append(txinputtype)
return inputs
def tx_inputs(self, tx, for_sig=False):
inputs = []
for txin in tx.inputs():
txinputtype = self.types.TxInputType()
if txin['type'] == 'coinbase':
prev_hash = bytes(32)
prev_index = 0xffffffff # signed int -1
else:
if for_sig:
x_pubkeys = txin['x_pubkeys']
if len(x_pubkeys) == 1:
x_pubkey = x_pubkeys[0]
xpub, s = parse_xpubkey(x_pubkey)
xpub_n = bip32_decompose_chain_string(
self.xpub_path[xpub])
txinputtype.address_n.extend(xpub_n + s)
txinputtype.script_type = self.types.SPENDADDRESS
else:
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = BIP32PublicKey(bfh(x_pubkey),
NULL_DERIVATION,
Net.COIN)
xpub = xpub.to_extended_key_string()
s = []
node = self.ckd_public.deserialize(xpub)
return self.types.HDNodePathType(node=node,
address_n=s)
pubkeys = [f(x) for x in x_pubkeys]
multisig = self.types.MultisigRedeemScriptType(
pubkeys=pubkeys,
signatures=[
bfh(x)[:-1] if x else b''
for x in txin.get('signatures')
],
m=txin.get('num_sig'),
)
script_type = self.types.SPENDMULTISIG
txinputtype = self.types.TxInputType(
script_type=script_type, multisig=multisig)
# find which key is mine
for x_pubkey in x_pubkeys:
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
if xpub in self.xpub_path:
xpub_n = bip32_decompose_chain_string(
self.xpub_path[xpub])
txinputtype.address_n.extend(xpub_n + s)
break
prev_hash = bytes.fromhex(txin['prevout_hash'])
prev_index = txin['prevout_n']
if 'value' in txin:
txinputtype.amount = txin['value']
txinputtype.prev_hash = prev_hash
txinputtype.prev_index = prev_index
if 'scriptSig' in txin:
script_sig = bfh(txin['scriptSig'])
txinputtype.script_sig = script_sig
txinputtype.sequence = txin.get('sequence', 0xffffffff - 1)
inputs.append(txinputtype)
return inputs