def setAmount(self, amount):
if amount is None:
self.setText("")
else:
self.setText(format_satoshis_plain(amount, self.decimal_point()))
def get_max_amount(self):
from electrum_gmc.util import format_satoshis_plain
inputs = self.wallet.get_spendable_coins(None)
amount, fee = self.wallet.get_max_amount(self.electrum_config, inputs, None)
return format_satoshis_plain(amount, self.decimal_point())
def sign_transaction(self, tx, password):
if self.has_seed():
return BIP32_HD_Wallet.sign_transaction(self, tx, password)
if tx.is_complete():
return
#if tx.error:
# raise BaseException(tx.error)
self.signing = True
inputs = []
inputsPaths = []
pubKeys = []
trustedInputs = []
redeemScripts = []
signatures = []
preparedTrustedInputs = []
changePath = ""
changeAmount = None
output = None
outputAmount = None
use2FA = False
pin = ""
rawTx = tx.serialize()
# Fetch inputs of the transaction to sign
for txinput in tx.inputs:
if ('is_coinbase' in txinput and txinput['is_coinbase']):
self.give_error("Coinbase not supported") # should never happen
inputs.append([ self.transactions[txinput['prevout_hash']].raw,
txinput['prevout_n'] ])
address = txinput['address']
inputsPaths.append(self.address_id(address))
pubKeys.append(self.get_public_keys(address))
# Recognize outputs - only one output and one change is authorized
if len(tx.outputs) > 2: # should never happen
self.give_error("Transaction with more than 2 outputs not supported")
for type, address, amount in tx.outputs:
assert type == 'address'
if self.is_change(address):
changePath = self.address_id(address)
changeAmount = amount
else:
if output <> None: # should never happen
self.give_error("Multiple outputs with no change not supported")
output = address
if not self.canAlternateCoinVersions:
v, h = bc_address_to_hash_160(address)
if v == 38:
output = hash_160_to_bc_address(h, 0)
outputAmount = amount
self.get_client() # prompt for the PIN before displaying the dialog if necessary
if not self.check_proper_device():
self.give_error('Wrong device or password')
self.plugin.handler.show_message("Signing Transaction ...")
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
txtmp = bitcoinTransaction(bytearray(utxo[0].decode('hex')))
trustedInputs.append(self.get_client().getTrustedInput(txtmp, utxo[1]))
# TODO : Support P2SH later
redeemScripts.append(txtmp.outputs[utxo[1]].script)
# Sign all inputs
firstTransaction = True
inputIndex = 0
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(firstTransaction, inputIndex,
trustedInputs, redeemScripts[inputIndex])
outputData = self.get_client().finalizeInput(output, format_satoshis_plain(outputAmount),
format_satoshis_plain(self.get_tx_fee(tx)), changePath, bytearray(rawTx.decode('hex')))
if firstTransaction:
transactionOutput = outputData['outputData']
if outputData['confirmationNeeded']:
# TODO : handle different confirmation types. For the time being only supports keyboard 2FA
self.plugin.handler.stop()
if 'keycardData' in outputData:
pin2 = ""
for keycardIndex in range(len(outputData['keycardData'])):
msg = "Do not enter your device PIN here !\r\n\r\n" + \
"Your Ledger Wallet wants to talk to you and tell you a unique second factor code.\r\n" + \
"For this to work, please match the character between stars of the output address using your security card\r\n\r\n" + \
"Output address : "
for index in range(len(output)):
if index == outputData['keycardData'][keycardIndex]:
msg = msg + "*" + output[index] + "*"
else:
msg = msg + output[index]
msg = msg + "\r\n"
confirmed, p, pin = self.password_dialog(msg)
if not confirmed:
raise Exception('Aborted by user')
try:
pin2 = pin2 + chr(int(pin[0], 16))
except:
raise Exception('Invalid PIN character')
pin = pin2
else:
use2FA = True
confirmed, p, pin = self.password_dialog()
if not confirmed:
raise Exception('Aborted by user')
pin = pin.encode()
self.client.bad = True
self.device_checked = False
self.get_client(True)
self.plugin.handler.show_message("Signing ...")
else:
# Sign input with the provided PIN
inputSignature = self.get_client().untrustedHashSign(inputsPaths[inputIndex],
pin)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
firstTransaction = False
except Exception, e:
self.give_error(e, True)
def get_max_amount(self):
from electrum_gmc.util import format_satoshis_plain
inputs = self.wallet.get_spendable_coins(None)
amount, fee = self.wallet.get_max_amount(self.electrum_config, inputs,
None)
return format_satoshis_plain(amount, self.decimal_point())
def setAmount(self, amount):
if amount is None:
self.setText("")
else:
self.setText(format_satoshis_plain(amount, self.decimal_point()))
def sign_transaction(self, tx, password):
if self.has_seed():
return BIP32_HD_Wallet.sign_transaction(self, tx, password)
if tx.is_complete():
return
#if tx.error:
# raise BaseException(tx.error)
self.signing = True
inputs = []
inputsPaths = []
pubKeys = []
trustedInputs = []
redeemScripts = []
signatures = []
preparedTrustedInputs = []
changePath = ""
changeAmount = None
output = None
outputAmount = None
use2FA = False
pin = ""
rawTx = tx.serialize()
# Fetch inputs of the transaction to sign
for txinput in tx.inputs:
if ('is_coinbase' in txinput and txinput['is_coinbase']):
self.give_error(
"Coinbase not supported") # should never happen
inputs.append([
self.transactions[txinput['prevout_hash']].raw,
txinput['prevout_n']
])
address = txinput['address']
inputsPaths.append(self.address_id(address))
pubKeys.append(self.get_public_keys(address))
# Recognize outputs - only one output and one change is authorized
if len(tx.outputs) > 2: # should never happen
self.give_error(
"Transaction with more than 2 outputs not supported")
for type, address, amount in tx.outputs:
assert type == 'address'
if self.is_change(address):
changePath = self.address_id(address)
changeAmount = amount
else:
if output <> None: # should never happen
self.give_error(
"Multiple outputs with no change not supported")
output = address
if not self.canAlternateCoinVersions:
v, h = bc_address_to_hash_160(address)
if v == 38:
output = hash_160_to_bc_address(h, 0)
outputAmount = amount
self.get_client(
) # prompt for the PIN before displaying the dialog if necessary
if not self.check_proper_device():
self.give_error('Wrong device or password')
self.plugin.handler.show_message("Signing Transaction ...")
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
txtmp = bitcoinTransaction(bytearray(utxo[0].decode('hex')))
trustedInputs.append(self.get_client().getTrustedInput(
txtmp, utxo[1]))
# TODO : Support P2SH later
redeemScripts.append(txtmp.outputs[utxo[1]].script)
# Sign all inputs
firstTransaction = True
inputIndex = 0
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(
firstTransaction, inputIndex, trustedInputs,
redeemScripts[inputIndex])
outputData = self.get_client().finalizeInput(
output, format_satoshis_plain(outputAmount),
format_satoshis_plain(self.get_tx_fee(tx)), changePath,
bytearray(rawTx.decode('hex')))
if firstTransaction:
transactionOutput = outputData['outputData']
if outputData['confirmationNeeded']:
# TODO : handle different confirmation types. For the time being only supports keyboard 2FA
self.plugin.handler.stop()
if 'keycardData' in outputData:
pin2 = ""
for keycardIndex in range(
len(outputData['keycardData'])):
msg = "Do not enter your device PIN here !\r\n\r\n" + \
"Your Ledger Wallet wants to talk to you and tell you a unique second factor code.\r\n" + \
"For this to work, please match the character between stars of the output address using your security card\r\n\r\n" + \
"Output address : "
for index in range(len(output)):
if index == outputData['keycardData'][
keycardIndex]:
msg = msg + "*" + output[index] + "*"
else:
msg = msg + output[index]
msg = msg + "\r\n"
confirmed, p, pin = self.password_dialog(msg)
if not confirmed:
raise Exception('Aborted by user')
try:
pin2 = pin2 + chr(int(pin[0], 16))
except:
raise Exception('Invalid PIN character')
pin = pin2
else:
use2FA = True
confirmed, p, pin = self.password_dialog()
if not confirmed:
raise Exception('Aborted by user')
pin = pin.encode()
self.client.bad = True
self.device_checked = False
self.get_client(True)
self.plugin.handler.show_message("Signing ...")
else:
# Sign input with the provided PIN
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex], pin)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
firstTransaction = False
except Exception, e:
self.give_error(e, True)