def test_payto(self, mock_save_db):
wallet = restore_wallet_from_text('ignore hospital shallow unit river glue battle chat pet option position icon',
gap_limit=2,
path='if_this_exists_mocking_failed_648151893',
config=self.config)['wallet']
# bootstrap wallet
funding_tx = Transaction('0200000001688b4db66baaae1dde4a59aaccc1282757db5b192033a8d41718cd9e3949f7d2050000006a47304402203f8fca0aa5ef38d20e275d3c7cf191ce56e5f12e351ffa12f0a667440374ef7a0220206ef46cf234a35b7f4e3f062c99a118966403f9e788ec870d93114dd20081fa01210211db4efc20880c5b57cfa947550a7f337c99adf5c11999de380e2e4e196eebcefeffffff02ac150700000000001976a914eb9fad52a0664d10798fdcc0c4776ef07d910d7788acbc2b0800000000001976a914a9262375de5f7a2c81e0d28f3c6ab42e594627e888acea0e0800')
funding_txid = funding_tx.txid()
self.assertEqual('2304741a3b690d5c52bac443792e9ec6af535b527c562899b36e72e8c4e3bf4f', funding_txid)
wallet.receive_tx_callback(funding_txid, funding_tx, TX_HEIGHT_UNCONFIRMED)
cmds = Commands(config=self.config)
tx_str = cmds._run(
'payto', (),
destination="yR41Y7aXsoYCSugFhXJ2DU5asRtW1rpzV3",
amount="0.00123456",
feerate=1000,
locktime=1972344,
wallet=wallet)
tx = tx_from_any(tx_str)
self.assertEqual(2, len(tx.outputs()))
txout = TxOutput.from_address_and_value("yR41Y7aXsoYCSugFhXJ2DU5asRtW1rpzV3", 123456)
self.assertTrue(txout in tx.outputs())
self.assertEqual("02000000014fbfe3c4e8726eb39928567c525b53afc69e2e7943c4ba525c0d693b1a740423000000006a4730440220234aa5fe38e0d99013fb1427a0998560f513b26c37a1e53540da5b9b7859c0540220316735a04e115941b3f62e54f7f30473bf44c483eef335e702d542b8d6e81f3e0121025837acda77e6b2295e03c50c356057e3f2ec8d6c498ba9351618ee913510daa3feffffff0240e20100000000001976a91433ed429c95e392a27f1194b400b07cff5167284588ac8a320500000000001976a9144ee5b85791f50a4270ad7277ff307fd66f7254e188ac78181e00",
tx_str)
assert tx_from_any(tx_str).is_complete()
def input_script(self, txin, estimate_size=False):
if txin['type'] == 'p2pkh':
return Transaction.get_preimage_script(txin)
if txin['type'] == 'p2sh':
# Multisig verification has partial support, but is disabled. This is the
# expected serialization though, so we leave it here until we activate it.
return '00' + push_script(Transaction.get_preimage_script(txin))
raise Exception("unsupported type %s" % txin['type'])
def input_script(self, txin, estimate_size=False):
if txin['type'] == 'p2pkh':
return Transaction.get_preimage_script(txin)
if txin['type'] == 'p2sh':
# Multisig verification has partial support, but is disabled. This is the
# expected serialization though, so we leave it here until we activate it.
return '00' + push_script(Transaction.get_preimage_script(txin))
raise Exception("unsupported type %s" % txin['type'])
def test_restoring_wallet_without_manual_delete(self, mock_write):
w = restore_wallet_from_text("hint shock chair puzzle shock traffic drastic note dinosaur mention suggest sweet",
path='if_this_exists_mocking_failed_648151893',
gap_limit=5)['wallet']
for txid in self.transactions:
tx = Transaction(self.transactions[txid])
w.add_transaction(tx.txid(), tx)
# txn A is an external incoming txn funding the wallet
# txn B is an outgoing payment to an external address
# txn C is double-spending txn B, to a wallet address
self.assertEqual(83500163, sum(w.get_balance()))
def sign_transaction(self, tx, password):
if tx.is_complete():
return
if not self.check_proper_device():
give_error('Wrong device or password')
# previous transactions used as inputs
prev_tx = {}
# path of the xpubs that are involved
xpub_path = {}
for txin in tx.inputs:
tx_hash = txin['prevout_hash']
ptx = self.transactions.get(tx_hash)
if ptx is None:
ptx = self.network.synchronous_get([
('blockchain.transaction.get', [tx_hash])
])[0]
ptx = Transaction(ptx)
prev_tx[tx_hash] = ptx
for x_pubkey in txin['x_pubkeys']:
if not is_extended_pubkey(x_pubkey):
continue
xpub = x_to_xpub(x_pubkey)
for k, v in self.master_public_keys.items():
if v == xpub:
account_id = re.match("x/(\d+)'", k).group(1)
account_derivation = "44'/5'/%s'" % account_id
xpub_path[xpub] = account_derivation
self.plugin.sign_transaction(tx, prev_tx, xpub_path)
def test_dsa_msg(self):
msg = DashDsaMsg.from_hex(DSA_MSG)
assert msg.nDenom == 2
assert type(msg.txCollateral) == str
tx = Transaction(msg.txCollateral)
assert type(tx) == Transaction
assert bh2u(msg.serialize()) == DSA_MSG
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)
def do_paste(self):
data = self.app._clipboard.paste()
if not data:
self.app.show_info(_("Clipboard is empty"))
return
# try to decode as transaction
try:
raw_tx = tx_from_str(data)
tx = Transaction(raw_tx)
tx.deserialize()
except:
tx = None
if tx:
self.app.tx_dialog(tx)
return
# try to decode as URI/address
self.set_URI(data)
def export_to_file(self, *, tx: Transaction = None):
if tx is None:
tx = self.tx
if isinstance(tx, PartialTransaction):
tx.finalize_psbt()
if tx.is_complete():
name = 'signed_%s' % (tx.txid()[0:8])
extension = 'txn'
default_filter = TRANSACTION_FILE_EXTENSION_FILTER_ONLY_COMPLETE_TX
else:
name = self.wallet.basename() + time.strftime('-%Y%m%d-%H%M')
extension = 'psbt'
default_filter = TRANSACTION_FILE_EXTENSION_FILTER_ONLY_PARTIAL_TX
name = f'{name}.{extension}'
fileName = self.main_window.getSaveFileName(
_("Select where to save your transaction"),
name,
TRANSACTION_FILE_EXTENSION_FILTER_SEPARATE,
default_extension=extension,
default_filter=default_filter)
if not fileName:
return
if tx.is_complete(): # network tx hex
with open(fileName, "w+") as f:
network_tx_hex = tx.serialize_to_network()
f.write(network_tx_hex + '\n')
else: # if partial: PSBT bytes
assert isinstance(tx, PartialTransaction)
with open(fileName, "wb+") as f:
f.write(tx.serialize_as_bytes())
self.show_message(_("Transaction exported successfully"))
self.saved = True
def is_any_tx_output_on_change_branch(tx: Transaction):
if not tx.output_info:
return False
for o in tx.outputs():
info = tx.output_info.get(o.address)
if info is not None:
if info.address_index[0] == 1:
return True
return False
def test_signtransaction_with_wallet(self, mock_save_db):
wallet = restore_wallet_from_text('nest trophy glide lemon humor rose faint able keep squirrel major inform',
gap_limit=2, path='if_this_exists_mocking_failed_648151893',
config=self.config)['wallet']
# bootstrap wallet1
funding_tx = Transaction('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')
funding_txid = funding_tx.txid()
funding_output_value = 1000000
self.assertEqual('ebf85f1ef2573600e0038cfbb57b17b80965bccc95ece63e5cad81352493fd2f', funding_txid)
wallet.receive_tx_callback(funding_txid, funding_tx, TX_HEIGHT_UNCONFIRMED)
cmds = Commands(config=self.config)
unsigned_tx = "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"
tx_str = cmds._run('signtransaction', (), tx=unsigned_tx, wallet=wallet)
self.assertEqual("02000000016db9ec4e9467060df1ff284ab5d31c7421acad34bd832b15254815a2cdb81cef010000006a47304402204be923230cfe88dc76a140f68c99f1df62b3567619279f5ba042123a0ce53a0b02204c5fe44e2395896b15db968c07937c7b7c1bfc7243540a4079a675eea0085579012102b66b7fddee3a75e5c9072783cf60a501fb43d7a33a57e17eef4ec9c16df7888ffeffffff0180410f00000000001976a914810360686bec102ca2cbfe7d25fe3897ac1c14e588ace80e0800",
tx_str)
assert tx_from_any(tx_str).is_complete()
def show_qr(self, *, tx: Transaction = None):
if tx is None:
tx = self.tx
qr_data = tx.to_qr_data()
try:
self.main_window.show_qrcode(qr_data, 'Transaction', parent=self)
except qrcode.exceptions.DataOverflowError:
self.show_error(_('Failed to display QR code.') + '\n' +
_('Transaction is too large in size.'))
except Exception as e:
self.show_error(_('Failed to display QR code.') + '\n' + repr(e))
def test_dsi_msg(self):
msg = DashDsiMsg.from_hex(DSI_MSG)
assert len(msg.vecTxDSIn) == 2
for txin in msg.vecTxDSIn:
assert type(txin) == CTxIn
assert type(msg.txCollateral) == str
tx = Transaction(msg.txCollateral)
assert type(tx) == Transaction
assert len(msg.vecTxDSOut) == 2
for txout in msg.vecTxDSOut:
assert type(txout) == CTxOut
assert bh2u(msg.serialize()) == DSI_MSG
def test_restoring_wallet_with_manual_delete(self, mock_write):
w = restore_wallet_from_text("hint shock chair puzzle shock traffic drastic note dinosaur mention suggest sweet",
path='if_this_exists_mocking_failed_648151893',
gap_limit=5)['wallet']
# txn A is an external incoming txn funding the wallet
txA = Transaction(self.transactions["0cce62d61ec87ad3e391e8cd752df62e0c952ce45f52885d6d10988e02794060"])
w.add_transaction(txA.txid(), txA)
# txn B is an outgoing payment to an external address
txB = Transaction(self.transactions["e7f4e47f41421e37a8600b6350befd586f30db60a88d0992d54df280498f0968"])
w.add_transaction(txB.txid(), txB)
# now the user manually deletes txn B to attempt the double spend
# txn C is double-spending txn B, to a wallet address
# rationale1: user might do this with opt-in RBF transactions
# rationale2: this might be a local transaction, in which case the GUI even allows it
w.remove_transaction(txB)
txC = Transaction(self.transactions["a04328fbc9f28268378a8b9cf103db21ca7d673bf1cc7fa4d61b6a7265f07a6b"])
w.add_transaction(txC.txid(), txC)
self.assertEqual(83500163, sum(w.get_balance()))
def on_qr(self, data):
from electrum_dash.bitcoin import base_decode, is_address
data = data.strip()
if is_address(data):
self.set_URI(data)
return
if data.startswith('dash:'):
self.set_URI(data)
return
# try to decode transaction
from electrum_dash.transaction import Transaction
try:
text = base_decode(data, None, base=43).encode('hex')
tx = Transaction(text)
tx.deserialize()
except:
tx = None
if tx:
self.tx_dialog(tx)
return
# show error
self.show_error("Unable to decode QR data")
def on_qr(self, data):
from electrum_dash.bitcoin import base_decode, is_address
data = data.strip()
if is_address(data):
self.set_URI(data)
return
if data.startswith('dash:'):
self.set_URI(data)
return
# try to decode transaction
from electrum_dash.transaction import Transaction
from electrum_dash.util import bh2u
try:
text = bh2u(base_decode(data, None, base=43))
tx = Transaction(text)
tx.deserialize()
except:
tx = None
if tx:
self.tx_dialog(tx)
return
# show error
self.show_error("Unable to decode QR data")
def tx_inputs(self,
tx: Transaction,
*,
for_sig=False,
keystore: 'SafeTKeyStore' = None):
inputs = []
for txin in tx.inputs():
txinputtype = self.types.TxInputType()
if txin.is_coinbase_input():
prev_hash = b"\x00" * 32
prev_index = 0xffffffff # signed int -1
else:
if for_sig:
assert isinstance(tx, PartialTransaction)
assert isinstance(txin, PartialTxInput)
assert keystore
if len(txin.pubkeys) > 1:
xpubs_and_deriv_suffixes = get_xpubs_and_der_suffixes_from_txinout(
tx, txin)
multisig = self._make_multisig(
txin.num_sig, xpubs_and_deriv_suffixes)
else:
multisig = None
script_type = self.get_safet_input_script_type(
txin.script_type)
txinputtype = self.types.TxInputType(
script_type=script_type, multisig=multisig)
my_pubkey, full_path = keystore.find_my_pubkey_in_txinout(
txin)
if full_path:
txinputtype._extend_address_n(full_path)
prev_hash = txin.prevout.txid
prev_index = txin.prevout.out_idx
if txin.value_sats() is not None:
txinputtype.amount = txin.value_sats()
txinputtype.prev_hash = prev_hash
txinputtype.prev_index = prev_index
if txin.script_sig is not None:
txinputtype.script_sig = txin.script_sig
txinputtype.sequence = txin.nsequence
inputs.append(txinputtype)
return inputs
def export_to_file(self, *, tx: Transaction = None):
if tx is None:
tx = self.tx
if isinstance(tx, PartialTransaction):
tx.finalize_psbt()
txid = tx.txid()
suffix = txid[0:8] if txid is not None else time.strftime(
'%Y%m%d-%H%M')
if tx.is_complete():
extension = 'txn'
default_filter = TRANSACTION_FILE_EXTENSION_FILTER_ONLY_COMPLETE_TX
else:
extension = 'psbt'
default_filter = TRANSACTION_FILE_EXTENSION_FILTER_ONLY_PARTIAL_TX
name = f'{self.wallet.basename()}-{suffix}.{extension}'
fileName = getSaveFileName(
parent=self,
title=_("Select where to save your transaction"),
filename=name,
filter=TRANSACTION_FILE_EXTENSION_FILTER_SEPARATE,
default_extension=extension,
default_filter=default_filter,
config=self.config,
)
if not fileName:
return
if tx.is_complete(): # network tx hex
with open(fileName, "w+") as f:
network_tx_hex = tx.serialize_to_network()
f.write(network_tx_hex + '\n')
else: # if partial: PSBT bytes
assert isinstance(tx, PartialTransaction)
with open(fileName, "wb+") as f:
f.write(tx.serialize_as_bytes())
self.show_message(_("Transaction exported successfully"))
self.saved = True
def sign_transaction(self, tx, password):
if tx.is_complete():
return
client = self.get_client()
self.signing = True
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
# 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)
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):
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 == NetworkConstants.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 not p2shTransaction:
txtmp = bitcoinTransaction(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)
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(
firstTransaction, inputIndex, chipInputs,
redeemScripts[inputIndex])
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 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()
self.signing = False
def sign_transaction(self, tx, password):
if tx.is_complete():
return
client = self.get_client()
inputs = []
inputsPaths = []
pubKeys = []
chipInputs = []
redeemScripts = []
signatures = []
changePath = ""
output = None
p2shTransaction = False
pin = ""
self.get_client(
) # prompt for the PIN before displaying the dialog if necessary
# 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)
txin_prev_tx = txin.get('prev_tx')
if txin_prev_tx is None:
raise UserFacingException(
_('Offline signing with {} is not supported for legacy inputs.'
).format(self.device))
txin_prev_tx_raw = txin_prev_tx.raw if txin_prev_tx else None
txin_prev_tx.deserialize()
tx_type = txin_prev_tx.tx_type
extra_payload = txin_prev_tx.extra_payload
extra_data = b''
if tx_type and extra_payload:
extra_payload = extra_payload.serialize()
extra_data = bfh(var_int(len(extra_payload))) + extra_payload
inputs.append([
txin_prev_tx_raw, txin['prevout_n'], redeemScript,
txin['prevout_hash'], signingPos,
txin.get('sequence', 0xffffffff - 1),
txin.get('value'), extra_data
])
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 o in tx.outputs():
output_type, addr, amount = o.type, o.address, o.value
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 (for hw.1 and nano)
# - at most one output can bypass confirmation (~change) (for all)
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")
has_change = False
any_output_on_change_branch = is_any_tx_output_on_change_branch(tx)
for o in tx.outputs():
assert o.type == TYPE_ADDRESS
info = tx.output_info.get(o.address)
if (info is not None) and len(tx.outputs()) > 1 \
and not has_change:
index = info.address_index
on_change_branch = index[0] == 1
# prioritise hiding outputs on the 'change' branch from user
# because no more than one change address allowed
if on_change_branch == any_output_on_change_branch:
changePath = self.get_derivation(
)[2:] + "/%d/%d" % index
has_change = True
else:
output = o.address
else:
output = o.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 not p2shTransaction:
txtmp = bitcoinTransaction(bfh(utxo[0]))
txtmp.extra_data = utxo[7]
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_to_network()
self.get_client().enableAlternate2fa(False)
while inputIndex < len(inputs):
self.get_client().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 = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
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 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()
for i, txin in enumerate(tx.inputs()):
signingPos = inputs[i][4]
tx.add_signature_to_txin(i, signingPos, bh2u(signatures[i]))
tx.raw = tx.serialize()
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
# 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
txin_prev_tx.deserialize()
tx_type = txin_prev_tx.tx_type
extra_payload = txin_prev_tx.extra_payload
extra_data = b''
if tx_type and extra_payload:
extra_payload = extra_payload.serialize()
extra_data = bfh(var_int(len(extra_payload))) + extra_payload
inputs.append([txin_prev_tx_raw,
txin.prevout.out_idx,
redeemScript,
txin.prevout.txid.hex(),
my_pubkey,
txin.nsequence,
txin.value_sats(),
extra_data])
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 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 (not p2shTransaction) or client_electrum.supports_multi_output():
txtmp = bitcoinTransaction(bfh(utxo[0]))
txtmp.extra_data = utxo[7]
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)
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()
from electrum_dash.transaction import Transaction
from electrum_dash import paymentrequest
from electrum_dash import paymentrequest_pb2 as pb2
chain_file = 'mychain.pem'
cert_file = 'mycert.pem'
amount = 1000000
address = "18U5kpCAU4s8weFF8Ps5n8HAfpdUjDVF64"
memo = "blah"
out_file = "payreq"
with open(chain_file, 'r') as f:
chain = tlslite.X509CertChain()
chain.parsePemList(f.read())
certificates = pb2.X509Certificates()
certificates.certificate.extend(map(lambda x: str(x.bytes), chain.x509List))
with open(cert_file, 'r') as f:
rsakey = tlslite.utils.python_rsakey.Python_RSAKey.parsePEM(f.read())
script = Transaction.pay_script('address', address).decode('hex')
pr_string = paymentrequest.make_payment_request(amount, script, memo, rsakey)
with open(out_file,'wb') as f:
f.write(pr_string)
print("Payment request was written to file '%s'"%out_file)
def main(self):
add_menu()
welcome = 'Use the menu to scan a transaction.'
droid.fullShow(qr_layout(welcome))
while True:
event = droid.eventWait().result
if not event:
continue
elif event["name"] == "key":
if event["data"]["key"] == '4':
if self.qr_data:
self.show_qr(None)
self.show_title(welcome)
else:
break
elif event["name"] == "seed":
password = self.get_password()
if password is False:
modal_dialog('Error', 'incorrect password')
continue
seed = wallet.get_mnemonic(password)
modal_dialog('Your seed is', seed)
elif event["name"] == "password":
self.change_password_dialog()
elif event["name"] == "xpub":
mpk = wallet.get_master_public_key()
self.show_qr(mpk)
self.show_title('master public key')
elif event["name"] == "scan":
r = droid.scanBarcode()
r = r.result
if not r:
continue
data = r['extras']['SCAN_RESULT']
data = base_decode(data.encode('utf8'), None, base=43)
data = ''.join(chr(ord(b)) for b in data).encode('hex')
tx = Transaction(data)
#except:
# modal_dialog('Error', 'Cannot parse transaction')
# continue
if not wallet.can_sign(tx):
modal_dialog('Error', 'Cannot sign this transaction')
continue
lines = map(
lambda x: x[0] + u'\t\t' + format_satoshis(x[1])
if x[1] else x[0], tx.get_outputs())
if not modal_question('Sign?', '\n'.join(lines)):
continue
password = self.get_password()
if password is False:
modal_dialog('Error', 'incorrect password')
continue
droid.dialogCreateSpinnerProgress("Signing")
droid.dialogShow()
wallet.sign_transaction(tx, password)
droid.dialogDismiss()
data = base_encode(str(tx).decode('hex'), base=43)
self.show_qr(data)
self.show_title('Signed Transaction')
droid.makeToast("Bye!")
def main(self):
add_menu()
welcome = 'Use the menu to scan a transaction.'
droid.fullShow(qr_layout(welcome))
while True:
event = droid.eventWait().result
if not event:
continue
elif event["name"] == "key":
if event["data"]["key"] == '4':
if self.qr_data:
self.show_qr(None)
self.show_title(welcome)
else:
break
elif event["name"] == "seed":
password = self.get_password()
if password is False:
modal_dialog('Error','incorrect password')
continue
seed = wallet.get_mnemonic(password)
modal_dialog('Your seed is', seed)
elif event["name"] == "password":
self.change_password_dialog()
elif event["name"] == "xpub":
mpk = wallet.get_master_public_key()
self.show_qr(mpk)
self.show_title('master public key')
elif event["name"] == "scan":
r = droid.scanBarcode()
r = r.result
if not r:
continue
data = r['extras']['SCAN_RESULT']
data = base_decode(data.encode('utf8'), None, base=43)
data = ''.join(chr(ord(b)) for b in data).encode('hex')
tx = Transaction(data)
#except:
# modal_dialog('Error', 'Cannot parse transaction')
# continue
if not wallet.can_sign(tx):
modal_dialog('Error', 'Cannot sign this transaction')
continue
lines = map(lambda x: x[0] + u'\t\t' + format_satoshis(x[1]) if x[1] else x[0], tx.get_outputs())
if not modal_question('Sign?', '\n'.join(lines)):
continue
password = self.get_password()
if password is False:
modal_dialog('Error','incorrect password')
continue
droid.dialogCreateSpinnerProgress("Signing")
droid.dialogShow()
wallet.sign_transaction(tx, password)
droid.dialogDismiss()
data = base_encode(str(tx).decode('hex'), base=43)
self.show_qr(data)
self.show_title('Signed Transaction')
droid.makeToast("Bye!")
from electrum_dash.transaction import Transaction
from electrum_dash import paymentrequest
from electrum_dash import paymentrequest_pb2 as pb2
chain_file = 'mychain.pem'
cert_file = 'mycert.pem'
amount = 1000000
address = "18U5kpCAU4s8weFF8Ps5n8HAfpdUjDVF64"
memo = "blah"
out_file = "payreq"
with open(chain_file, 'r') as f:
chain = tlslite.X509CertChain()
chain.parsePemList(f.read())
certificates = pb2.X509Certificates()
certificates.certificate.extend(map(lambda x: str(x.bytes), chain.x509List))
with open(cert_file, 'r') as f:
rsakey = tlslite.utils.python_rsakey.Python_RSAKey.parsePEM(f.read())
script = Transaction.pay_script('address', address).decode('hex')
pr_string = paymentrequest.make_payment_request(amount, script, memo, rsakey)
with open(out_file, 'wb') as f:
f.write(pr_string)
print("Payment request was written to file '%s'" % out_file)
def sign_transaction(self, tx, password):
if tx.is_complete():
return
client = self.get_client()
inputs = []
inputsPaths = []
pubKeys = []
chipInputs = []
redeemScripts = []
signatures = []
preparedTrustedInputs = []
changePath = ""
output = None
p2shTransaction = False
pin = ""
self.get_client() # prompt for the PIN before displaying the dialog if necessary
# 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)
txin_prev_tx = txin.get('prev_tx')
if txin_prev_tx is None:
raise Exception(_('Offline signing with {} is not supported for legacy inputs.').format(self.device))
txin_prev_tx_raw = txin_prev_tx.raw if txin_prev_tx else None
inputs.append([txin_prev_tx_raw,
txin['prevout_n'],
redeemScript,
txin['prevout_hash'],
signingPos,
txin.get('sequence', 0xffffffff - 1),
txin.get('value')])
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 (for hw.1 and nano)
# - at most one output can bypass confirmation (~change) (for all)
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")
has_change = False
any_output_on_change_branch = is_any_tx_output_on_change_branch(tx)
for o in tx.outputs():
assert o.type == TYPE_ADDRESS
info = tx.output_info.get(o.address)
if (info is not None) and len(tx.outputs()) > 1 \
and not has_change:
index = info.address_index
on_change_branch = index[0] == 1
# prioritise hiding outputs on the 'change' branch from user
# because no more than one change address allowed
if on_change_branch == any_output_on_change_branch:
changePath = self.get_derivation()[2:] + "/%d/%d"%index
has_change = True
else:
output = o.address
else:
output = o.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)
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 not p2shTransaction:
txtmp = bitcoinTransaction(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_to_network()
self.get_client().enableAlternate2fa(False)
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
elif e.sw == 0x6982:
raise # pin lock. decorator will catch it
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]
tx.add_signature_to_txin(i, signingPos, bh2u(signatures[i]))
tx.raw = tx.serialize()
