def test_verify_fail_f_tx_even(self):
"""Raise if inner node of merkle branch is valid tx. ('even' fake leaf position)"""
# last 32 bytes of T encoded as hash
fake_branch_node = hash_encode(bfh(VALID_64_BYTE_TX[64:]))
fake_mbranch = [fake_branch_node] + MERKLE_BRANCH
# first 32 bytes of T encoded as hash
f_tx_hash = hash_encode(bfh(VALID_64_BYTE_TX[:64]))
with self.assertRaises(InnerNodeOfSpvProofIsValidTx):
SPV.hash_merkle_root(fake_mbranch, f_tx_hash, 6)
def parse_script(self, x):
script = ''
for word in x.split():
if word[0:3] == 'OP_':
opcode_int = opcodes[word]
script += construct_script([opcode_int])
else:
bfh(word) # to test it is hex data
script += construct_script([word])
return script
def parse_output(self, x) -> bytes:
try:
address = self.parse_address(x)
return bfh(bitcoin.address_to_script(address))
except Exception:
pass
try:
script = self.parse_script(x)
return bfh(script)
except Exception:
pass
raise Exception("Invalid address or script.")
def parse_script(self, x):
from electrum_zcash.transaction import opcodes, push_script
script = ''
for word in x.split():
if word[0:3] == 'OP_':
assert word in opcodes.lookup
opcode_int = opcodes.lookup[word]
assert opcode_int < 256 # opcode is single-byte
script += bitcoin.int_to_hex(opcode_int)
else:
bfh(word) # to test it is hex data
script += push_script(word)
return script
def show_qr(self):
text = bfh(str(self.tx))
text = base_encode(text, base=43)
try:
self.main_window.show_qrcode(text, 'Transaction', parent=self)
except Exception as e:
self.show_message(str(e))
def on_receive(self, keyhash, message):
self.print_error("signal arrived for", keyhash)
for key, _hash, window in self.keys:
if _hash == keyhash:
break
else:
self.print_error("keyhash not found")
return
wallet = window.wallet
if wallet.has_keystore_encryption():
password = window.password_dialog('An encrypted transaction was retrieved from cosigning pool.\nPlease enter your password to decrypt it.')
if not password:
return
else:
password = None
if not window.question(_("An encrypted transaction was retrieved from cosigning pool.\nDo you want to open it now?")):
return
xprv = wallet.keystore.get_master_private_key(password)
if not xprv:
return
try:
k = bh2u(bitcoin.deserialize_xprv(xprv)[-1])
EC = bitcoin.EC_KEY(bfh(k))
message = bh2u(EC.decrypt_message(message))
except Exception as e:
traceback.print_exc(file=sys.stdout)
window.show_message(str(e))
return
self.listener.clear(keyhash)
tx = transaction.Transaction(message)
show_transaction(tx, window, prompt_if_unsaved=True)
def get_noise_map(
cls, versioned_seed: VersionedSeed) -> Dict[Tuple[int, int], int]:
"""Returns a map from (x,y) coordinate to pixel value 0/1, to be used as rawnoise."""
w, h = cls.SIZE
version = versioned_seed.version
hex_seed = versioned_seed.seed
checksum = versioned_seed.checksum
noise_map = {}
if version == '0':
random.seed(int(hex_seed, 16))
for x in range(w):
for y in range(h):
noise_map[(x, y)] = random.randint(0, 1)
elif version == '1':
prng_seed = bfh(hex_seed + version + checksum)
drbg = DRBG(prng_seed)
num_noise_bytes = 1929 # ~ w*h
noise_array = bin(
int.from_bytes(drbg.generate(num_noise_bytes), 'big'))[2:]
# there's an approx 1/1024 chance that the generated number is 'too small'
# and we would get IndexError below. easiest backwards compat fix:
noise_array += '0' * (w * h - len(noise_array))
i = 0
for x in range(w):
for y in range(h):
noise_map[(x, y)] = int(noise_array[i])
i += 1
else:
raise Exception(f"unexpected revealer version: {version}")
return noise_map
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = xpub_from_pubkey(0, bfh(x_pubkey))
s = []
node = self.ckd_public.deserialize(xpub)
return self.types.HDNodePathType(node=node, address_n=s)
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 = bfh(vout['scriptPubKey'])
return t
def do_send(self, tx):
for window, xpub, K, _hash in self.cosigner_list:
if not self.cosigner_can_sign(tx, xpub):
continue
raw_tx_bytes = bfh(str(tx))
message = bitcoin.encrypt_message(raw_tx_bytes, bh2u(K)).decode('ascii')
try:
server.put(_hash, message)
except Exception as e:
traceback.print_exc(file=sys.stdout)
window.show_message("Failed to send transaction to cosigning pool.")
return
window.show_message("Your transaction was sent to the cosigning pool.\nOpen your cosigner wallet to retrieve it.")
def electrum_tx_to_txtype(self, tx):
t = self.types.TransactionType()
if tx is None:
# probably for segwit input and we don't need this prev txn
return t
d = deserialize(tx.raw)
t.version = d['version']
t.lock_time = d['lockTime']
inputs = self.tx_inputs(tx)
t._extend_inputs(inputs)
for vout in d['outputs']:
o = t._add_bin_outputs()
o.amount = vout['value']
o.script_pubkey = bfh(vout['scriptPubKey'])
return t
def sign_transaction(self, keystore, tx: PartialTransaction, prev_tx):
prev_tx = {
bfh(txhash): self.electrum_tx_to_txtype(tx)
for txhash, tx in prev_tx.items()
}
client = self.get_client(keystore)
inputs = self.tx_inputs(tx, for_sig=True, keystore=keystore)
outputs = self.tx_outputs(tx, keystore=keystore)
details = SignTx(lock_time=tx.locktime, version=tx.version)
signatures, _ = client.sign_tx(self.get_coin_name(),
inputs,
outputs,
details=details,
prev_txes=prev_tx)
signatures = [(bh2u(x) + '01') for x in signatures]
tx.update_signatures(signatures)
def sign_transaction(self, tx, password):
if tx.is_complete():
return
try:
p2pkhTransaction = True
inputhasharray = []
hasharray = []
pubkeyarray = []
# Build hasharray from inputs
for i, txin in enumerate(tx.inputs()):
if txin.is_coinbase_input():
self.give_error("Coinbase not supported") # should never happen
if txin.script_type != 'p2pkh':
p2pkhTransaction = False
my_pubkey, inputPath = self.find_my_pubkey_in_txinout(txin)
if not inputPath:
self.give_error("No matching pubkey for sign_transaction") # should never happen
inputPath = convert_bip32_intpath_to_strpath(inputPath)
inputHash = sha256d(bfh(tx.serialize_preimage(i)))
hasharray_i = {'hash': to_hexstr(inputHash), 'keypath': inputPath}
hasharray.append(hasharray_i)
inputhasharray.append(inputHash)
# Build pubkeyarray from outputs
for txout in tx.outputs():
assert txout.address
if txout.is_change:
changePubkey, changePath = self.find_my_pubkey_in_txinout(txout)
assert changePath
changePath = convert_bip32_intpath_to_strpath(changePath)
changePubkey = changePubkey.hex()
pubkeyarray_i = {'pubkey': changePubkey, 'keypath': changePath}
pubkeyarray.append(pubkeyarray_i)
# Special serialization of the unsigned transaction for
# the mobile verification app.
# At the moment, verification only works for p2pkh transactions.
if p2pkhTransaction:
tx_copy = copy.deepcopy(tx)
# monkey-patch method of tx_copy instance to change serialization
def input_script(self, txin: PartialTxInput, *, estimate_size=False):
if txin.script_type == 'p2pkh':
return Transaction.get_preimage_script(txin)
raise Exception("unsupported type %s" % txin.script_type)
tx_copy.input_script = input_script.__get__(tx_copy, PartialTransaction)
tx_dbb_serialized = tx_copy.serialize_to_network()
else:
# We only need this for the signing echo / verification.
tx_dbb_serialized = None
# Build sign command
dbb_signatures = []
steps = math.ceil(1.0 * len(hasharray) / self.maxInputs)
for step in range(int(steps)):
hashes = hasharray[step * self.maxInputs : (step + 1) * self.maxInputs]
msg = {
"sign": {
"data": hashes,
"checkpub": pubkeyarray,
},
}
if tx_dbb_serialized is not None:
msg["sign"]["meta"] = to_hexstr(sha256d(tx_dbb_serialized))
msg = json.dumps(msg).encode('ascii')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception("Could not sign transaction.")
reply = dbb_client.hid_send_encrypt(msg)
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'echo' not in reply:
raise Exception("Could not sign transaction.")
if self.plugin.is_mobile_paired() and tx_dbb_serialized is not None:
reply['tx'] = tx_dbb_serialized
self.plugin.comserver_post_notification(reply)
if steps > 1:
self.handler.show_message(_("Signing large transaction. Please be patient ...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + " " +
_("(Touch {} of {})").format((step + 1), steps) + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout.") + "\n\n")
else:
self.handler.show_message(_("Signing transaction...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."))
# Send twice, first returns an echo for smart verification
reply = dbb_client.hid_send_encrypt(msg)
self.handler.finished()
if 'error' in reply:
if reply["error"].get('code') in (600, 601):
# aborted via LED short touch or timeout
raise UserCancelled()
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception("Could not sign transaction.")
dbb_signatures.extend(reply['sign'])
# Fill signatures
if len(dbb_signatures) != len(tx.inputs()):
raise Exception("Incorrect number of transactions signed.") # Should never occur
for i, txin in enumerate(tx.inputs()):
for pubkey_bytes in txin.pubkeys:
if txin.is_complete():
break
signed = dbb_signatures[i]
if 'recid' in signed:
# firmware > v2.1.1
recid = int(signed['recid'], 16)
s = binascii.unhexlify(signed['sig'])
h = inputhasharray[i]
pk = ecc.ECPubkey.from_sig_string(s, recid, h)
pk = pk.get_public_key_hex(compressed=True)
elif 'pubkey' in signed:
# firmware <= v2.1.1
pk = signed['pubkey']
if pk != pubkey_bytes.hex():
continue
sig_r = int(signed['sig'][:64], 16)
sig_s = int(signed['sig'][64:], 16)
sig = ecc.der_sig_from_r_and_s(sig_r, sig_s)
sig = to_hexstr(sig) + '01'
tx.add_signature_to_txin(txin_idx=i, signing_pubkey=pubkey_bytes.hex(), sig=sig)
except UserCancelled:
raise
except BaseException as e:
self.give_error(e, True)
else:
_logger.info(f"Transaction is_complete {tx.is_complete()}")
class TestBlockchain(ElectrumTestCase):
HEADERS = {
'A': deserialize_header(bfh("00" * 1487), 0),
'B': deserialize_header(bfh("00" * 1487), 1),
'C': deserialize_header(bfh("00" * 1487), 2),
'D': deserialize_header(bfh("00" * 1487), 3),
'E': deserialize_header(bfh("00" * 1487), 4),
'F': deserialize_header(bfh("00" * 1487), 5),
'O': deserialize_header(bfh("00" * 1487), 6),
'P': deserialize_header(bfh("00" * 1487), 7),
'Q': deserialize_header(bfh("00" * 1487), 8),
'R': deserialize_header(bfh("00" * 1487), 9),
'S': deserialize_header(bfh("00" * 1487), 10),
'T': deserialize_header(bfh("00" * 1487), 11),
'U': deserialize_header(bfh("00" * 1487), 12),
'G': deserialize_header(bfh("00" * 1487), 6),
'H': deserialize_header(bfh("00" * 1487), 7),
'I': deserialize_header(bfh("00" * 1487), 8),
'J': deserialize_header(bfh("00" * 1487), 9),
'K': deserialize_header(bfh("00" * 1487), 10),
'L': deserialize_header(bfh("00" * 1487), 11),
'M': deserialize_header(bfh("00" * 1487), 9),
'N': deserialize_header(bfh("00" * 1487), 10),
'X': deserialize_header(bfh("00" * 1487), 11),
'Y': deserialize_header(bfh("00" * 1487), 12),
'Z': deserialize_header(bfh("00" * 1487), 13),
}
# tree of headers:
# - M <- N <- X <- Y <- Z
# /
# - G <- H <- I <- J <- K <- L
# /
# A <- B <- C <- D <- E <- F <- O <- P <- Q <- R <- S <- T <- U
@classmethod
def setUpClass(cls):
super().setUpClass()
constants.set_regtest()
@classmethod
def tearDownClass(cls):
super().tearDownClass()
constants.set_mainnet()
def setUp(self):
super().setUp()
self.data_dir = self.electrum_path
make_dir(os.path.join(self.data_dir, 'forks'))
self.config = SimpleConfig({'electrum_path': self.data_dir})
blockchain.blockchains = {}
def _append_header(self, chain: Blockchain, header: dict):
self.assertTrue(chain.can_connect(header))
chain.save_header(header)
@unittest.skip("skip before actual blockchain data will be supplied")
def test_get_height_of_last_common_block_with_chain(self):
blockchain.blockchains[constants.net.GENESIS] = chain_u = Blockchain(
config=self.config,
forkpoint=0,
parent=None,
forkpoint_hash=constants.net.GENESIS,
prev_hash=None)
open(chain_u.path(), 'w+').close()
self._append_header(chain_u, self.HEADERS['A'])
self._append_header(chain_u, self.HEADERS['B'])
self._append_header(chain_u, self.HEADERS['C'])
self._append_header(chain_u, self.HEADERS['D'])
self._append_header(chain_u, self.HEADERS['E'])
self._append_header(chain_u, self.HEADERS['F'])
self._append_header(chain_u, self.HEADERS['O'])
self._append_header(chain_u, self.HEADERS['P'])
self._append_header(chain_u, self.HEADERS['Q'])
chain_l = chain_u.fork(self.HEADERS['G'])
self._append_header(chain_l, self.HEADERS['H'])
self._append_header(chain_l, self.HEADERS['I'])
self._append_header(chain_l, self.HEADERS['J'])
self._append_header(chain_l, self.HEADERS['K'])
self._append_header(chain_l, self.HEADERS['L'])
self.assertEqual({
chain_u: 8,
chain_l: 5
}, chain_u.get_parent_heights())
self.assertEqual({chain_l: 11}, chain_l.get_parent_heights())
chain_z = chain_l.fork(self.HEADERS['M'])
self._append_header(chain_z, self.HEADERS['N'])
self._append_header(chain_z, self.HEADERS['X'])
self._append_header(chain_z, self.HEADERS['Y'])
self._append_header(chain_z, self.HEADERS['Z'])
self.assertEqual({
chain_u: 8,
chain_z: 5
}, chain_u.get_parent_heights())
self.assertEqual({
chain_l: 11,
chain_z: 8
}, chain_l.get_parent_heights())
self.assertEqual({chain_z: 13}, chain_z.get_parent_heights())
self.assertEqual(
5, chain_u.get_height_of_last_common_block_with_chain(chain_l))
self.assertEqual(
5, chain_l.get_height_of_last_common_block_with_chain(chain_u))
self.assertEqual(
5, chain_u.get_height_of_last_common_block_with_chain(chain_z))
self.assertEqual(
5, chain_z.get_height_of_last_common_block_with_chain(chain_u))
self.assertEqual(
8, chain_l.get_height_of_last_common_block_with_chain(chain_z))
self.assertEqual(
8, chain_z.get_height_of_last_common_block_with_chain(chain_l))
self._append_header(chain_u, self.HEADERS['R'])
self._append_header(chain_u, self.HEADERS['S'])
self._append_header(chain_u, self.HEADERS['T'])
self._append_header(chain_u, self.HEADERS['U'])
self.assertEqual({
chain_u: 12,
chain_z: 5
}, chain_u.get_parent_heights())
self.assertEqual({
chain_l: 11,
chain_z: 8
}, chain_l.get_parent_heights())
self.assertEqual({chain_z: 13}, chain_z.get_parent_heights())
self.assertEqual(
5, chain_u.get_height_of_last_common_block_with_chain(chain_l))
self.assertEqual(
5, chain_l.get_height_of_last_common_block_with_chain(chain_u))
self.assertEqual(
5, chain_u.get_height_of_last_common_block_with_chain(chain_z))
self.assertEqual(
5, chain_z.get_height_of_last_common_block_with_chain(chain_u))
self.assertEqual(
8, chain_l.get_height_of_last_common_block_with_chain(chain_z))
self.assertEqual(
8, chain_z.get_height_of_last_common_block_with_chain(chain_l))
@unittest.skip("skip before actual blockchain data will be supplied")
def test_parents_after_forking(self):
blockchain.blockchains[constants.net.GENESIS] = chain_u = Blockchain(
config=self.config,
forkpoint=0,
parent=None,
forkpoint_hash=constants.net.GENESIS,
prev_hash=None)
open(chain_u.path(), 'w+').close()
self._append_header(chain_u, self.HEADERS['A'])
self._append_header(chain_u, self.HEADERS['B'])
self._append_header(chain_u, self.HEADERS['C'])
self._append_header(chain_u, self.HEADERS['D'])
self._append_header(chain_u, self.HEADERS['E'])
self._append_header(chain_u, self.HEADERS['F'])
self._append_header(chain_u, self.HEADERS['O'])
self._append_header(chain_u, self.HEADERS['P'])
self._append_header(chain_u, self.HEADERS['Q'])
self.assertEqual(None, chain_u.parent)
chain_l = chain_u.fork(self.HEADERS['G'])
self._append_header(chain_l, self.HEADERS['H'])
self._append_header(chain_l, self.HEADERS['I'])
self._append_header(chain_l, self.HEADERS['J'])
self._append_header(chain_l, self.HEADERS['K'])
self._append_header(chain_l, self.HEADERS['L'])
self.assertEqual(None, chain_l.parent)
self.assertEqual(chain_l, chain_u.parent)
chain_z = chain_l.fork(self.HEADERS['M'])
self._append_header(chain_z, self.HEADERS['N'])
self._append_header(chain_z, self.HEADERS['X'])
self._append_header(chain_z, self.HEADERS['Y'])
self._append_header(chain_z, self.HEADERS['Z'])
self.assertEqual(chain_z, chain_u.parent)
self.assertEqual(chain_z, chain_l.parent)
self.assertEqual(None, chain_z.parent)
self._append_header(chain_u, self.HEADERS['R'])
self._append_header(chain_u, self.HEADERS['S'])
self._append_header(chain_u, self.HEADERS['T'])
self._append_header(chain_u, self.HEADERS['U'])
self.assertEqual(chain_z, chain_u.parent)
self.assertEqual(chain_z, chain_l.parent)
self.assertEqual(None, chain_z.parent)
@unittest.skip("skip before actual blockchain data will be supplied")
def test_forking_and_swapping(self):
blockchain.blockchains[constants.net.GENESIS] = chain_u = Blockchain(
config=self.config,
forkpoint=0,
parent=None,
forkpoint_hash=constants.net.GENESIS,
prev_hash=None)
open(chain_u.path(), 'w+').close()
self._append_header(chain_u, self.HEADERS['A'])
self._append_header(chain_u, self.HEADERS['B'])
self._append_header(chain_u, self.HEADERS['C'])
self._append_header(chain_u, self.HEADERS['D'])
self._append_header(chain_u, self.HEADERS['E'])
self._append_header(chain_u, self.HEADERS['F'])
self._append_header(chain_u, self.HEADERS['O'])
self._append_header(chain_u, self.HEADERS['P'])
self._append_header(chain_u, self.HEADERS['Q'])
self._append_header(chain_u, self.HEADERS['R'])
chain_l = chain_u.fork(self.HEADERS['G'])
self._append_header(chain_l, self.HEADERS['H'])
self._append_header(chain_l, self.HEADERS['I'])
self._append_header(chain_l, self.HEADERS['J'])
# do checks
self.assertEqual(2, len(blockchain.blockchains))
self.assertEqual(1,
len(os.listdir(os.path.join(self.data_dir, "forks"))))
self.assertEqual(0, chain_u.forkpoint)
self.assertEqual(None, chain_u.parent)
self.assertEqual(constants.net.GENESIS, chain_u._forkpoint_hash)
self.assertEqual(None, chain_u._prev_hash)
self.assertEqual(os.path.join(self.data_dir, "blockchain_headers"),
chain_u.path())
self.assertEqual(10 * 80, os.stat(chain_u.path()).st_size)
self.assertEqual(6, chain_l.forkpoint)
self.assertEqual(chain_u, chain_l.parent)
self.assertEqual(hash_header(self.HEADERS['G']),
chain_l._forkpoint_hash)
self.assertEqual(hash_header(self.HEADERS['F']), chain_l._prev_hash)
self.assertEqual(
os.path.join(
self.data_dir, "forks",
"fork2_6_61b274ea009f7566740eec9aeff7676c6dffb4136a1033427f5d7647e0fe0bed_e3599615f2e4e04bd143ecaead68800b3e4497113eddc17c1e3602e01622caf8"
), chain_l.path())
self.assertEqual(4 * 80, os.stat(chain_l.path()).st_size)
self._append_header(chain_l, self.HEADERS['K'])
# chains were swapped, do checks
self.assertEqual(2, len(blockchain.blockchains))
self.assertEqual(1,
len(os.listdir(os.path.join(self.data_dir, "forks"))))
self.assertEqual(6, chain_u.forkpoint)
self.assertEqual(chain_l, chain_u.parent)
self.assertEqual(hash_header(self.HEADERS['O']),
chain_u._forkpoint_hash)
self.assertEqual(hash_header(self.HEADERS['F']), chain_u._prev_hash)
self.assertEqual(
os.path.join(
self.data_dir, "forks",
"fork2_6_61b274ea009f7566740eec9aeff7676c6dffb4136a1033427f5d7647e0fe0bed_a9e0ca750c5f9d2e2a22d858c2282d64936f672ab6030ba9edd45f291e9f9b1f"
), chain_u.path())
self.assertEqual(4 * 80, os.stat(chain_u.path()).st_size)
self.assertEqual(0, chain_l.forkpoint)
self.assertEqual(None, chain_l.parent)
self.assertEqual(constants.net.GENESIS, chain_l._forkpoint_hash)
self.assertEqual(None, chain_l._prev_hash)
self.assertEqual(os.path.join(self.data_dir, "blockchain_headers"),
chain_l.path())
self.assertEqual(11 * 80, os.stat(chain_l.path()).st_size)
for b in (chain_u, chain_l):
self.assertTrue(
all([
b.can_connect(b.read_header(i), False)
for i in range(b.height())
]))
self._append_header(chain_u, self.HEADERS['S'])
self._append_header(chain_u, self.HEADERS['T'])
self._append_header(chain_u, self.HEADERS['U'])
self._append_header(chain_l, self.HEADERS['L'])
chain_z = chain_l.fork(self.HEADERS['M'])
self._append_header(chain_z, self.HEADERS['N'])
self._append_header(chain_z, self.HEADERS['X'])
self._append_header(chain_z, self.HEADERS['Y'])
self._append_header(chain_z, self.HEADERS['Z'])
# chain_z became best chain, do checks
self.assertEqual(3, len(blockchain.blockchains))
self.assertEqual(2,
len(os.listdir(os.path.join(self.data_dir, "forks"))))
self.assertEqual(0, chain_z.forkpoint)
self.assertEqual(None, chain_z.parent)
self.assertEqual(constants.net.GENESIS, chain_z._forkpoint_hash)
self.assertEqual(None, chain_z._prev_hash)
self.assertEqual(os.path.join(self.data_dir, "blockchain_headers"),
chain_z.path())
self.assertEqual(14 * 80, os.stat(chain_z.path()).st_size)
self.assertEqual(9, chain_l.forkpoint)
self.assertEqual(chain_z, chain_l.parent)
self.assertEqual(hash_header(self.HEADERS['J']),
chain_l._forkpoint_hash)
self.assertEqual(hash_header(self.HEADERS['I']), chain_l._prev_hash)
self.assertEqual(
os.path.join(
self.data_dir, "forks",
"fork2_9_67b0765c4090086b9dcecb70ba3d10e807df305cce403e4c6e4ca9edfe4d5a1d_a879ddca14a9d4d1c81ee90401910e7a186ee6511972aefa8791524a94463cf9"
), chain_l.path())
self.assertEqual(3 * 80, os.stat(chain_l.path()).st_size)
self.assertEqual(6, chain_u.forkpoint)
self.assertEqual(chain_z, chain_u.parent)
self.assertEqual(hash_header(self.HEADERS['O']),
chain_u._forkpoint_hash)
self.assertEqual(hash_header(self.HEADERS['F']), chain_u._prev_hash)
self.assertEqual(
os.path.join(
self.data_dir, "forks",
"fork2_6_61b274ea009f7566740eec9aeff7676c6dffb4136a1033427f5d7647e0fe0bed_a9e0ca750c5f9d2e2a22d858c2282d64936f672ab6030ba9edd45f291e9f9b1f"
), chain_u.path())
self.assertEqual(7 * 80, os.stat(chain_u.path()).st_size)
for b in (chain_u, chain_l, chain_z):
self.assertTrue(
all([
b.can_connect(b.read_header(i), False)
for i in range(b.height())
]))
self.assertEqual(constants.net.GENESIS, chain_z.get_hash(0))
self.assertEqual(hash_header(self.HEADERS['F']), chain_z.get_hash(5))
self.assertEqual(hash_header(self.HEADERS['G']), chain_z.get_hash(6))
self.assertEqual(hash_header(self.HEADERS['I']), chain_z.get_hash(8))
self.assertEqual(hash_header(self.HEADERS['M']), chain_z.get_hash(9))
self.assertEqual(hash_header(self.HEADERS['Z']), chain_z.get_hash(13))
@unittest.skip("skip before actual blockchain data will be supplied")
def test_doing_multiple_swaps_after_single_new_header(self):
blockchain.blockchains[constants.net.GENESIS] = chain_u = Blockchain(
config=self.config,
forkpoint=0,
parent=None,
forkpoint_hash=constants.net.GENESIS,
prev_hash=None)
open(chain_u.path(), 'w+').close()
self._append_header(chain_u, self.HEADERS['A'])
self._append_header(chain_u, self.HEADERS['B'])
self._append_header(chain_u, self.HEADERS['C'])
self._append_header(chain_u, self.HEADERS['D'])
self._append_header(chain_u, self.HEADERS['E'])
self._append_header(chain_u, self.HEADERS['F'])
self._append_header(chain_u, self.HEADERS['O'])
self._append_header(chain_u, self.HEADERS['P'])
self._append_header(chain_u, self.HEADERS['Q'])
self._append_header(chain_u, self.HEADERS['R'])
self._append_header(chain_u, self.HEADERS['S'])
self.assertEqual(1, len(blockchain.blockchains))
self.assertEqual(0,
len(os.listdir(os.path.join(self.data_dir, "forks"))))
chain_l = chain_u.fork(self.HEADERS['G'])
self._append_header(chain_l, self.HEADERS['H'])
self._append_header(chain_l, self.HEADERS['I'])
self._append_header(chain_l, self.HEADERS['J'])
self._append_header(chain_l, self.HEADERS['K'])
# now chain_u is best chain, but it's tied with chain_l
self.assertEqual(2, len(blockchain.blockchains))
self.assertEqual(1,
len(os.listdir(os.path.join(self.data_dir, "forks"))))
chain_z = chain_l.fork(self.HEADERS['M'])
self._append_header(chain_z, self.HEADERS['N'])
self._append_header(chain_z, self.HEADERS['X'])
self.assertEqual(3, len(blockchain.blockchains))
self.assertEqual(2,
len(os.listdir(os.path.join(self.data_dir, "forks"))))
# chain_z became best chain, do checks
self.assertEqual(0, chain_z.forkpoint)
self.assertEqual(None, chain_z.parent)
self.assertEqual(constants.net.GENESIS, chain_z._forkpoint_hash)
self.assertEqual(None, chain_z._prev_hash)
self.assertEqual(os.path.join(self.data_dir, "blockchain_headers"),
chain_z.path())
self.assertEqual(12 * 80, os.stat(chain_z.path()).st_size)
self.assertEqual(9, chain_l.forkpoint)
self.assertEqual(chain_z, chain_l.parent)
self.assertEqual(hash_header(self.HEADERS['J']),
chain_l._forkpoint_hash)
self.assertEqual(hash_header(self.HEADERS['I']), chain_l._prev_hash)
self.assertEqual(
os.path.join(
self.data_dir, "forks",
"fork2_9_67b0765c4090086b9dcecb70ba3d10e807df305cce403e4c6e4ca9edfe4d5a1d_a879ddca14a9d4d1c81ee90401910e7a186ee6511972aefa8791524a94463cf9"
), chain_l.path())
self.assertEqual(2 * 80, os.stat(chain_l.path()).st_size)
self.assertEqual(6, chain_u.forkpoint)
self.assertEqual(chain_z, chain_u.parent)
self.assertEqual(hash_header(self.HEADERS['O']),
chain_u._forkpoint_hash)
self.assertEqual(hash_header(self.HEADERS['F']), chain_u._prev_hash)
self.assertEqual(
os.path.join(
self.data_dir, "forks",
"fork2_6_61b274ea009f7566740eec9aeff7676c6dffb4136a1033427f5d7647e0fe0bed_a9e0ca750c5f9d2e2a22d858c2282d64936f672ab6030ba9edd45f291e9f9b1f"
), chain_u.path())
self.assertEqual(5 * 80, os.stat(chain_u.path()).st_size)
self.assertEqual(constants.net.GENESIS, chain_z.get_hash(0))
self.assertEqual(hash_header(self.HEADERS['F']), chain_z.get_hash(5))
self.assertEqual(hash_header(self.HEADERS['G']), chain_z.get_hash(6))
self.assertEqual(hash_header(self.HEADERS['I']), chain_z.get_hash(8))
self.assertEqual(hash_header(self.HEADERS['M']), chain_z.get_hash(9))
self.assertEqual(hash_header(self.HEADERS['X']), chain_z.get_hash(11))
for b in (chain_u, chain_l, chain_z):
self.assertTrue(
all([
b.can_connect(b.read_header(i), False)
for i in range(b.height())
]))
def get_chains_that_contain_header_helper(self, header: dict):
height = header['block_height']
header_hash = hash_header(header)
return blockchain.get_chains_that_contain_header(height, header_hash)
@unittest.skip("skip before actual blockchain data will be supplied")
def test_get_chains_that_contain_header(self):
blockchain.blockchains[constants.net.GENESIS] = chain_u = Blockchain(
config=self.config,
forkpoint=0,
parent=None,
forkpoint_hash=constants.net.GENESIS,
prev_hash=None)
open(chain_u.path(), 'w+').close()
self._append_header(chain_u, self.HEADERS['A'])
self._append_header(chain_u, self.HEADERS['B'])
self._append_header(chain_u, self.HEADERS['C'])
self._append_header(chain_u, self.HEADERS['D'])
self._append_header(chain_u, self.HEADERS['E'])
self._append_header(chain_u, self.HEADERS['F'])
self._append_header(chain_u, self.HEADERS['O'])
self._append_header(chain_u, self.HEADERS['P'])
self._append_header(chain_u, self.HEADERS['Q'])
chain_l = chain_u.fork(self.HEADERS['G'])
self._append_header(chain_l, self.HEADERS['H'])
self._append_header(chain_l, self.HEADERS['I'])
self._append_header(chain_l, self.HEADERS['J'])
self._append_header(chain_l, self.HEADERS['K'])
self._append_header(chain_l, self.HEADERS['L'])
chain_z = chain_l.fork(self.HEADERS['M'])
self.assertEqual([chain_l, chain_z, chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['A']))
self.assertEqual([chain_l, chain_z, chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['C']))
self.assertEqual([chain_l, chain_z, chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['F']))
self.assertEqual([chain_l, chain_z],
self.get_chains_that_contain_header_helper(
self.HEADERS['G']))
self.assertEqual([chain_l, chain_z],
self.get_chains_that_contain_header_helper(
self.HEADERS['I']))
self.assertEqual([chain_z],
self.get_chains_that_contain_header_helper(
self.HEADERS['M']))
self.assertEqual([chain_l],
self.get_chains_that_contain_header_helper(
self.HEADERS['K']))
self._append_header(chain_z, self.HEADERS['N'])
self._append_header(chain_z, self.HEADERS['X'])
self._append_header(chain_z, self.HEADERS['Y'])
self._append_header(chain_z, self.HEADERS['Z'])
self.assertEqual([chain_z, chain_l, chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['A']))
self.assertEqual([chain_z, chain_l, chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['C']))
self.assertEqual([chain_z, chain_l, chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['F']))
self.assertEqual([chain_u],
self.get_chains_that_contain_header_helper(
self.HEADERS['O']))
self.assertEqual([chain_z, chain_l],
self.get_chains_that_contain_header_helper(
self.HEADERS['I']))
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(0, bfh(x_pubkey))
s = []
node = self.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: bfh(x)[:-1] if x else b'',
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 setUp(self):
super().setUp()
self.header = deserialize_header(bfh(self.valid_header), 1296288)
def sign_transaction(self, tx, password):
if tx.is_complete():
return
inputs = []
inputsPaths = []
chipInputs = []
redeemScripts = []
changePath = ""
output = None
p2shTransaction = False
pin = ""
client_ledger = self.get_client(
) # prompt for the PIN before displaying the dialog if necessary
client_electrum = self.get_client_electrum()
assert client_electrum
if tx.overwintered:
if not client_electrum.supports_overwinter():
self.give_error(MSG_NEEDS_FW_UPDATE_OVERWINTER)
# Fetch inputs of the transaction to sign
for txin in tx.inputs():
if txin.is_coinbase_input():
self.give_error(
"Coinbase not supported") # should never happen
if txin.script_type in ['p2sh']:
p2shTransaction = True
my_pubkey, full_path = self.find_my_pubkey_in_txinout(txin)
if not full_path:
self.give_error("No matching pubkey for sign_transaction"
) # should never happen
full_path = convert_bip32_intpath_to_strpath(full_path)[2:]
redeemScript = Transaction.get_preimage_script(txin)
txin_prev_tx = txin.utxo
if txin_prev_tx is None:
raise UserFacingException(
_('Missing previous tx for legacy input.'))
txin_prev_tx_raw = txin_prev_tx.serialize(
) if txin_prev_tx else None
inputs.append([
txin_prev_tx_raw, txin.prevout.out_idx, redeemScript,
txin.prevout.txid.hex(), my_pubkey, txin.nsequence,
txin.value_sats()
])
inputsPaths.append(full_path)
# Sanity check
if p2shTransaction:
for txin in tx.inputs():
if txin.script_type != 'p2sh':
self.give_error(
"P2SH / regular input mixed in same transaction not supported"
) # should never happen
txOutput = var_int(len(tx.outputs()))
for o in tx.outputs():
txOutput += int_to_hex(o.value, 8)
script = o.scriptpubkey.hex()
txOutput += var_int(len(script) // 2)
txOutput += script
txOutput = bfh(txOutput)
if not client_electrum.supports_multi_output():
if len(tx.outputs()) > 2:
self.give_error(
"Transaction with more than 2 outputs not supported")
for txout in tx.outputs():
if client_electrum.is_hw1(
) and txout.address and not is_b58_address(txout.address):
self.give_error(
_("This {} device can only send to base58 addresses.").
format(self.device))
if not txout.address:
if client_electrum.is_hw1():
self.give_error(
_("Only address outputs are supported by {}").format(
self.device))
# note: max_size based on https://github.com/LedgerHQ/ledger-app-btc/commit/3a78dee9c0484821df58975803e40d58fbfc2c38#diff-c61ccd96a6d8b54d48f54a3bc4dfa7e2R26
validate_op_return_output(txout, max_size=190)
# Output "change" detection
# - only one output and one change is authorized (for hw.1 and nano)
# - at most one output can bypass confirmation (~change) (for all)
if not p2shTransaction:
has_change = False
any_output_on_change_branch = is_any_tx_output_on_change_branch(tx)
for txout in tx.outputs():
if txout.is_mine and len(tx.outputs()) > 1 \
and not has_change:
# prioritise hiding outputs on the 'change' branch from user
# because no more than one change address allowed
if txout.is_change == any_output_on_change_branch:
my_pubkey, changePath = self.find_my_pubkey_in_txinout(
txout)
assert changePath
changePath = convert_bip32_intpath_to_strpath(
changePath)[2:]
has_change = True
else:
output = txout.address
else:
output = txout.address
if not self.get_client_electrum().canAlternateCoinVersions:
v, h = b58_address_to_hash160(output)
if v == constants.net.ADDRTYPE_P2PKH:
output = hash160_to_b58_address(h, 0)
self.handler.show_message(
_("Confirm Transaction on your Ledger device..."))
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
sequence = int_to_hex(utxo[5], 4)
if tx.overwintered:
txtmp = zcashTransaction(bfh(utxo[0]))
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
tmp += txtmp.outputs[utxo[1]].amount
chipInputs.append({'value': tmp, 'sequence': sequence})
redeemScripts.append(bfh(utxo[2]))
elif (not p2shTransaction
) or client_electrum.supports_multi_output():
txtmp = zcashTransaction(bfh(utxo[0]))
trustedInput = client_ledger.getTrustedInput(
txtmp, utxo[1])
trustedInput['sequence'] = sequence
chipInputs.append(trustedInput)
if p2shTransaction:
redeemScripts.append(bfh(utxo[2]))
else:
redeemScripts.append(txtmp.outputs[utxo[1]].script)
else:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
chipInputs.append({'value': tmp, 'sequence': sequence})
redeemScripts.append(bfh(utxo[2]))
# Sign all inputs
firstTransaction = True
inputIndex = 0
rawTx = tx.serialize_to_network()
client_ledger.enableAlternate2fa(False)
if tx.overwintered:
self.get_client().startUntrustedTransaction(
True,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version,
overwintered=tx.overwintered)
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
if tx.overwintered:
inputSignature = client_ledger.untrustedHashSign(
'',
pin,
lockTime=tx.locktime,
overwintered=tx.overwintered)
outputData = client_ledger.finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
# do the authenticate dialog and get pin:
pin = self.handler.get_auth(outputData,
client=client_electrum)
if not pin:
raise UserWarning()
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
while inputIndex < len(inputs):
singleInput = [chipInputs[inputIndex]]
client_ledger.startUntrustedTransaction(
False,
0,
singleInput,
redeemScripts[inputIndex],
version=tx.version,
overwintered=tx.overwintered)
inputSignature = client_ledger.untrustedHashSign(
inputsPaths[inputIndex],
pin,
lockTime=tx.locktime,
overwintered=tx.overwintered)
inputSignature[0] = 0x30 # force for 1.4.9+
my_pubkey = inputs[inputIndex][4]
tx.add_signature_to_txin(txin_idx=inputIndex,
signing_pubkey=my_pubkey.hex(),
sig=inputSignature.hex())
inputIndex = inputIndex + 1
else:
while inputIndex < len(inputs):
client_ledger.startUntrustedTransaction(
firstTransaction,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version)
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = client_ledger.finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
# do the authenticate dialog and get pin:
pin = self.handler.get_auth(outputData,
client=client_electrum)
if not pin:
raise UserWarning()
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
else:
# Sign input with the provided PIN
inputSignature = client_ledger.untrustedHashSign(
inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
my_pubkey = inputs[inputIndex][4]
tx.add_signature_to_txin(
txin_idx=inputIndex,
signing_pubkey=my_pubkey.hex(),
sig=inputSignature.hex())
inputIndex = inputIndex + 1
firstTransaction = False
except UserWarning:
self.handler.show_error(_('Cancelled by user'))
return
except BTChipException as e:
if e.sw in (0x6985, 0x6d00): # cancelled by user
return
elif e.sw == 0x6982:
raise # pin lock. decorator will catch it
else:
self.logger.exception('')
self.give_error(e, True)
except BaseException as e:
self.logger.exception('')
self.give_error(e, True)
finally:
self.handler.finished()
def sign_transaction(self, tx, password):
if tx.is_complete():
return
client = self.get_client()
inputs = []
inputsPaths = []
pubKeys = []
chipInputs = []
redeemScripts = []
signatures = []
preparedTrustedInputs = []
changePath = ""
changeAmount = None
output = None
outputAmount = None
p2shTransaction = False
pin = ""
self.get_client(
) # prompt for the PIN before displaying the dialog if necessary
if tx.overwintered:
if not self.get_client_electrum().supports_overwinter():
self.give_error(MSG_NEEDS_FW_UPDATE_OVERWINTER)
# Fetch inputs of the transaction to sign
derivations = self.get_tx_derivations(tx)
for txin in tx.inputs():
if txin['type'] == 'coinbase':
self.give_error(
"Coinbase not supported") # should never happen
if txin['type'] in ['p2sh']:
p2shTransaction = True
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
for i, x_pubkey in enumerate(x_pubkeys):
if x_pubkey in derivations:
signingPos = i
s = derivations.get(x_pubkey)
hwAddress = "%s/%d/%d" % (self.get_derivation()[2:], s[0],
s[1])
break
else:
self.give_error("No matching x_key for sign_transaction"
) # should never happen
redeemScript = Transaction.get_preimage_script(txin)
if txin.get(
'prev_tx'
) is None: # and not Transaction.is_segwit_input(txin):
# note: offline signing does not work atm even with segwit inputs for ledger
raise Exception(
_('Offline signing with {} is not supported.').format(
self.device))
inputs.append([
txin['prev_tx'].raw, txin['prevout_n'], redeemScript,
txin['prevout_hash'], signingPos,
txin.get('sequence', 0xffffffff - 1)
])
inputsPaths.append(hwAddress)
pubKeys.append(pubkeys)
# Sanity check
if p2shTransaction:
for txin in tx.inputs():
if txin['type'] != 'p2sh':
self.give_error(
"P2SH / regular input mixed in same transaction not supported"
) # should never happen
txOutput = var_int(len(tx.outputs()))
for txout in tx.outputs():
output_type, addr, amount = txout
txOutput += int_to_hex(amount, 8)
script = tx.pay_script(output_type, addr)
txOutput += var_int(len(script) // 2)
txOutput += script
txOutput = bfh(txOutput)
# Recognize outputs - only one output and one change is authorized
if not p2shTransaction:
if not self.get_client_electrum().supports_multi_output():
if len(tx.outputs()) > 2:
self.give_error(
"Transaction with more than 2 outputs not supported")
for _type, address, amount in tx.outputs():
assert _type == TYPE_ADDRESS
info = tx.output_info.get(address)
if (info is not None) and len(tx.outputs()) > 1 \
and info[0][0] == 1: # "is on 'change' branch"
index, xpubs, m = info
changePath = self.get_derivation()[2:] + "/%d/%d" % index
changeAmount = amount
else:
output = address
if not self.get_client_electrum().canAlternateCoinVersions:
v, h = b58_address_to_hash160(address)
if v == constants.net.ADDRTYPE_P2PKH:
output = hash160_to_b58_address(h, 0)
outputAmount = amount
self.handler.show_message(
_("Confirm Transaction on your Ledger device..."))
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
sequence = int_to_hex(utxo[5], 4)
if tx.overwintered:
txtmp = zcashTransaction(bfh(utxo[0]))
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
tmp += txtmp.outputs[utxo[1]].amount
chipInputs.append({'value': tmp, 'sequence': sequence})
redeemScripts.append(bfh(utxo[2]))
elif not p2shTransaction:
txtmp = zcashTransaction(bfh(utxo[0]))
trustedInput = self.get_client().getTrustedInput(
txtmp, utxo[1])
trustedInput['sequence'] = sequence
chipInputs.append(trustedInput)
redeemScripts.append(txtmp.outputs[utxo[1]].script)
else:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
chipInputs.append({'value': tmp, 'sequence': sequence})
redeemScripts.append(bfh(utxo[2]))
# Sign all inputs
firstTransaction = True
inputIndex = 0
rawTx = tx.serialize()
self.get_client().enableAlternate2fa(False)
if tx.overwintered:
self.get_client().startUntrustedTransaction(
True,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version,
overwintered=tx.overwintered)
if changePath:
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
else:
outputData = self.get_client().finalizeInputFull(txOutput)
if tx.overwintered:
inputSignature = self.get_client().untrustedHashSign(
'',
pin,
lockTime=tx.locktime,
overwintered=tx.overwintered)
outputData['outputData'] = txOutput
transactionOutput = outputData['outputData']
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth(
outputData
) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
if pin != 'paired':
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
while inputIndex < len(inputs):
singleInput = [chipInputs[inputIndex]]
self.get_client().startUntrustedTransaction(
False,
0,
singleInput,
redeemScripts[inputIndex],
version=tx.version,
overwintered=tx.overwintered)
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex],
pin,
lockTime=tx.locktime,
overwintered=tx.overwintered)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
else:
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(
firstTransaction, inputIndex, chipInputs,
redeemScripts[inputIndex])
if changePath:
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
else:
outputData = self.get_client().finalizeInputFull(
txOutput)
outputData['outputData'] = txOutput
if firstTransaction:
transactionOutput = outputData['outputData']
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth(
outputData
) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
if pin != 'paired':
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
else:
# Sign input with the provided PIN
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
if pin != 'paired':
firstTransaction = False
except UserWarning:
self.handler.show_error(_('Cancelled by user'))
return
except BTChipException as e:
if e.sw == 0x6985: # cancelled by user
return
else:
traceback.print_exc(file=sys.stderr)
self.give_error(e, True)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
self.give_error(e, True)
finally:
self.handler.finished()
for i, txin in enumerate(tx.inputs()):
signingPos = inputs[i][4]
txin['signatures'][signingPos] = bh2u(signatures[i])
tx.raw = tx.serialize()
