223 lines
8.4 KiB
Python
223 lines
8.4 KiB
Python
from binascii import unhexlify
|
|
|
|
from electrum.account import BIP32_Account
|
|
from electrum.bitcoin import bc_address_to_hash_160, xpub_from_pubkey
|
|
from electrum.i18n import _
|
|
from electrum.plugins import BasePlugin, hook
|
|
from electrum.transaction import deserialize, is_extended_pubkey
|
|
|
|
class TrezorCompatiblePlugin(BasePlugin):
|
|
# Derived classes provide:
|
|
#
|
|
# class-static variables: client_class, firmware_URL, handler_class,
|
|
# libraries_available, libraries_URL, minimum_firmware,
|
|
# wallet_class, ckd_public, types, HidTransport
|
|
|
|
def __init__(self, parent, config, name):
|
|
BasePlugin.__init__(self, parent, config, name)
|
|
self.device = self.wallet_class.device
|
|
self.wallet = None
|
|
self.handler = None
|
|
self.client = None
|
|
|
|
def constructor(self, s):
|
|
return self.wallet_class(s)
|
|
|
|
def give_error(self, message):
|
|
self.print_error(message)
|
|
raise Exception(message)
|
|
|
|
def is_available(self):
|
|
if not self.libraries_available:
|
|
return False
|
|
if not self.wallet:
|
|
return False
|
|
wallet_type = self.wallet.storage.get('wallet_type')
|
|
return wallet_type == self.wallet_class.wallet_type
|
|
|
|
def set_enabled(self, enabled):
|
|
self.wallet.storage.put('use_' + self.name, enabled)
|
|
|
|
def is_enabled(self):
|
|
if not self.is_available():
|
|
return False
|
|
if self.wallet.has_seed():
|
|
return False
|
|
return True
|
|
|
|
def get_client(self):
|
|
if not self.libraries_available:
|
|
self.give_error(_('please install the %s libraries from %s')
|
|
% (self.device, self.libraries_URL))
|
|
|
|
if not self.client or self.client.bad:
|
|
d = self.HidTransport.enumerate()
|
|
if not d:
|
|
self.give_error(_('Could not connect to your %s. Please '
|
|
'verify the cable is connected and that no '
|
|
'other app is using it.' % self.device))
|
|
transport = self.HidTransport(d[0])
|
|
self.client = self.client_class(transport, self.device)
|
|
self.client.handler = self.handler
|
|
self.client.set_tx_api(self)
|
|
self.client.bad = False
|
|
if not self.atleast_version(*self.minimum_firmware):
|
|
self.client = None
|
|
self.give_error(_('Outdated %s firmware. Please update the '
|
|
'firmware from %s') % (self.device,
|
|
self.firmware_URL))
|
|
return self.client
|
|
|
|
def compare_version(self, major, minor=0, patch=0):
|
|
f = self.get_client().features
|
|
v = [f.major_version, f.minor_version, f.patch_version]
|
|
self.print_error('firmware version', v)
|
|
return cmp(v, [major, minor, patch])
|
|
|
|
def atleast_version(self, major, minor=0, patch=0):
|
|
return self.compare_version(major, minor, patch) >= 0
|
|
|
|
@hook
|
|
def close_wallet(self):
|
|
self.print_error("clear session")
|
|
if self.client:
|
|
self.client.clear_session()
|
|
self.client.transport.close()
|
|
self.client = None
|
|
self.wallet = None
|
|
|
|
def sign_transaction(self, tx, prev_tx, xpub_path):
|
|
self.prev_tx = prev_tx
|
|
self.xpub_path = xpub_path
|
|
client = self.get_client()
|
|
inputs = self.tx_inputs(tx, True)
|
|
outputs = self.tx_outputs(tx)
|
|
try:
|
|
signed_tx = client.sign_tx('Bitcoin', inputs, outputs)[1]
|
|
except Exception as e:
|
|
self.give_error(e)
|
|
finally:
|
|
self.handler.stop()
|
|
raw = signed_tx.encode('hex')
|
|
tx.update_signatures(raw)
|
|
|
|
def show_address(self, address):
|
|
client = self.get_client()
|
|
self.wallet.check_proper_device()
|
|
try:
|
|
address_path = self.wallet.address_id(address)
|
|
address_n = client.expand_path(address_path)
|
|
except Exception as e:
|
|
self.give_error(e)
|
|
try:
|
|
client.get_address('Bitcoin', address_n, True)
|
|
except Exception as e:
|
|
self.give_error(e)
|
|
finally:
|
|
self.handler.stop()
|
|
|
|
def tx_inputs(self, tx, for_sig=False):
|
|
client = self.get_client()
|
|
inputs = []
|
|
for txin in tx.inputs:
|
|
txinputtype = self.types.TxInputType()
|
|
if txin.get('is_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 = BIP32_Account.parse_xpubkey(x_pubkey)
|
|
xpub_n = client.expand_path(self.xpub_path[xpub])
|
|
txinputtype.address_n.extend(xpub_n + s)
|
|
else:
|
|
def f(x_pubkey):
|
|
if is_extended_pubkey(x_pubkey):
|
|
xpub, s = BIP32_Account.parse_xpubkey(x_pubkey)
|
|
else:
|
|
xpub = xpub_from_pubkey(x_pubkey.decode('hex'))
|
|
s = []
|
|
node = ckd_public.deserialize(xpub)
|
|
return self.types.HDNodePathType(node=node, address_n=s)
|
|
pubkeys = map(f, x_pubkeys)
|
|
multisig = self.types.MultisigRedeemScriptType(
|
|
pubkeys=pubkeys,
|
|
signatures=map(lambda x: x.decode('hex') if x else '', txin.get('signatures')),
|
|
m=txin.get('num_sig'),
|
|
)
|
|
txinputtype = self.types.TxInputType(
|
|
script_type=self.types.SPENDMULTISIG,
|
|
multisig= multisig
|
|
)
|
|
# find which key is mine
|
|
for x_pubkey in x_pubkeys:
|
|
if is_extended_pubkey(x_pubkey):
|
|
xpub, s = BIP32_Account.parse_xpubkey(x_pubkey)
|
|
if xpub in self.xpub_path:
|
|
xpub_n = client.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']
|
|
|
|
txinputtype.prev_hash = prev_hash
|
|
txinputtype.prev_index = prev_index
|
|
|
|
if 'scriptSig' in txin:
|
|
script_sig = txin['scriptSig'].decode('hex')
|
|
txinputtype.script_sig = script_sig
|
|
|
|
if 'sequence' in txin:
|
|
sequence = txin['sequence']
|
|
txinputtype.sequence = sequence
|
|
|
|
inputs.append(txinputtype)
|
|
|
|
return inputs
|
|
|
|
def tx_outputs(self, tx):
|
|
client = self.get_client()
|
|
outputs = []
|
|
|
|
for type, address, amount in tx.outputs:
|
|
assert type == 'address'
|
|
txoutputtype = self.types.TxOutputType()
|
|
if self.wallet.is_change(address):
|
|
address_path = self.wallet.address_id(address)
|
|
address_n = client.expand_path(address_path)
|
|
txoutputtype.address_n.extend(address_n)
|
|
else:
|
|
txoutputtype.address = address
|
|
txoutputtype.amount = amount
|
|
addrtype, hash_160 = bc_address_to_hash_160(address)
|
|
if addrtype == 0:
|
|
txoutputtype.script_type = self.types.PAYTOADDRESS
|
|
elif addrtype == 5:
|
|
txoutputtype.script_type = self.types.PAYTOSCRIPTHASH
|
|
else:
|
|
raise BaseException('addrtype')
|
|
outputs.append(txoutputtype)
|
|
|
|
return outputs
|
|
|
|
def electrum_tx_to_txtype(self, tx):
|
|
t = self.types.TransactionType()
|
|
d = deserialize(tx.raw)
|
|
t.version = d['version']
|
|
t.lock_time = d['lockTime']
|
|
inputs = self.tx_inputs(tx)
|
|
t.inputs.extend(inputs)
|
|
for vout in d['outputs']:
|
|
o = t.bin_outputs.add()
|
|
o.amount = vout['value']
|
|
o.script_pubkey = vout['scriptPubKey'].decode('hex')
|
|
return t
|
|
|
|
def get_tx(self, tx_hash):
|
|
tx = self.prev_tx[tx_hash]
|
|
tx.deserialize()
|
|
return self.electrum_tx_to_txtype(tx)
|