def change_password(self, cb):
if self.wallet.has_password():
self.protected(
_("Changing PIN code.") + '\n' + _("Enter your current PIN:"),
self._change_password, (cb, ))
else:
self._change_password(cb, None)
def update(self):
format_amount = self.app.format_amount_and_units
tx_hash, self.status_str, self.description, self.can_broadcast, amount, fee, height, conf, timestamp, exp_n = self.wallet.get_tx_info(
self.tx)
self.tx_hash = tx_hash or ''
if timestamp:
self.date_str = datetime.fromtimestamp(timestamp).isoformat(
' ')[:-3]
elif exp_n:
self.date_str = _('Within %d blocks') % exp_n if exp_n > 0 else _(
'unknown (low fee)')
else:
self.date_str = ''
if amount is None:
self.amount_str = _("Transaction unrelated to your wallet")
elif amount > 0:
self.is_mine = False
self.amount_str = format_amount(amount)
else:
self.is_mine = True
self.amount_str = format_amount(-amount)
self.fee_str = format_amount(fee) if fee is not None else _('unknown')
self.can_sign = self.wallet.can_sign(self.tx)
self.ids.output_list.update(self.tx.outputs())
def do_new(self):
addr = self.get_new_address()
if not addr:
self.app.show_info(_('Please use the existing requests first.'))
else:
self.save_request()
self.app.show_info(_('New request added to your list.'))
def scan_qr(self, on_complete):
if platform != 'android':
return
from jnius import autoclass
from android import activity
PythonActivity = autoclass('org.kivy.android.PythonActivity')
Intent = autoclass('android.content.Intent')
intent = Intent("com.google.zxing.client.android.SCAN")
intent.putExtra("SCAN_MODE", "QR_CODE_MODE")
def on_qr_result(requestCode, resultCode, intent):
if requestCode == 0:
if resultCode == -1: # RESULT_OK:
contents = intent.getStringExtra("SCAN_RESULT")
if intent.getStringExtra(
"SCAN_RESULT_FORMAT") == 'QR_CODE':
on_complete(contents)
else:
self.show_error(
"wrong format " +
intent.getStringExtra("SCAN_RESULT_FORMAT"))
activity.bind(on_activity_result=on_qr_result)
try:
PythonActivity.mActivity.startActivityForResult(intent, 0)
except:
self.show_error(
_('Could not start Barcode Scanner.') + ' ' +
_('Please install the Barcode Scanner app from ZXing'))
def derivation_dialog_other(self, f, default_derivation):
message = '\n'.join([
_('Enter your wallet derivation here.'),
_('If you are not sure what this is, leave this field unchanged.')
])
self.line_dialog(run_next=f,
title=_('Derivation'),
message=message,
default=default_derivation,
test=bitcoin.is_bip32_derivation)
def import_addresses_or_keys(self):
v = lambda x: keystore.is_address_list(
x) or keystore.is_private_key_list(x)
title = _("Import Bitcoin Nano Addresses")
message = _(
"Enter a list of Bitcoin Nano addresses (this will create a watching-only wallet), or a list of private keys."
)
self.add_xpub_dialog(title=title,
message=message,
run_next=self.on_import,
is_valid=v)
def _change_password(self, cb, old_password):
if self.wallet.has_password():
if old_password is None:
return
try:
self.wallet.check_password(old_password)
except InvalidPassword:
self.show_error(_("Invalid PIN"))
return
self.password_dialog(_('Enter new PIN'), self._change_password2, (
cb,
old_password,
))
def _show_seed(self, label, password):
if self.wallet.has_password() and password is None:
return
keystore = self.wallet.keystore
try:
seed = keystore.get_seed(password)
passphrase = keystore.get_passphrase(password)
except:
self.show_error(_("Invalid PIN"))
return
label.text = _('Seed') + ':\n' + seed
if passphrase:
label.text += '\n\n' + _('Passphrase') + ': ' + passphrase
def new(self):
name = os.path.basename(self.storage.path)
title = _("Create") + ' ' + name
message = '\n'.join([_("What kind of wallet do you want to create ?")])
wallet_kinds = [
('standard', _("Standard wallet")),
# ('multisig', _("Multi-signature wallet")),
('imported', _("Import Bitcoin Nano addresses or private keys")),
]
choices = [pair for pair in wallet_kinds if pair[0] in wallet_types]
self.choice_dialog(title=title,
message=message,
choices=choices,
run_next=self.on_wallet_type)
def derivation_dialog(self, f):
default = bip44_derivation(0)
message = '\n'.join([
_('Enter your wallet derivation here.'),
_('If you are not sure what this is, leave this field unchanged.'),
_("If you want the wallet to use legacy Bitcoin Nano addresses use m/44'/0'/0'"
),
_("If you want the wallet to use Bitcoin Cash addresses use m/44'/145'/0'"
)
])
self.line_dialog(run_next=f,
title=_('Derivation'),
message=message,
default=default,
test=bitcoin.is_bip32_derivation)
def _change_password3(self, cb, old_password, new_password,
confirmed_password):
if new_password == confirmed_password:
self.wallet.update_password(old_password, new_password)
cb()
else:
self.show_error(_("PIN numbers do not match"))
def update(self):
self.menu_actions = [('Receive', self.do_show), ('Details', self.do_view)]
wallet = self.app.wallet
if not hasattr(wallet, 'change_addresses'):
wallet.change_addresses = []
if not hasattr(wallet, 'receiving_addresses'):
wallet.receiving_addresses = []
_list = wallet.change_addresses if self.screen.show_change else wallet.receiving_addresses
search = self.screen.message
container = self.screen.ids.search_container
container.clear_widgets()
n = 0
for address in _list:
label = wallet.labels.get(address, '')
balance = sum(wallet.get_addr_balance(address))
is_used = wallet.is_used(address)
if self.screen.show_used == 1 and (balance or is_used):
continue
if self.screen.show_used == 2 and balance == 0:
continue
if self.screen.show_used == 3 and not is_used:
continue
card = self.get_card(address, balance, is_used, label)
if search and not self.ext_search(card, search):
continue
container.add_widget(card)
n += 1
if not n:
msg = _('No address matching your search')
container.add_widget(EmptyLabel(text=msg))
def _sign_tx(self, tx, password, on_success, on_failure):
try:
self.wallet.sign_transaction(tx, password)
except InvalidPassword:
Clock.schedule_once(lambda dt: on_failure(_("Invalid PIN")))
return
Clock.schedule_once(lambda dt: on_success(tx))
def confirm_passphrase(self, seed, passphrase):
f = lambda x: self.run('create_keystore', seed, x)
if passphrase:
title = _('Confirm Seed Extension')
message = '\n'.join([
_('Your seed extension must be saved together with your seed.'
),
_('Please type it here.'),
])
self.line_dialog(run_next=f,
title=title,
message=message,
default='',
test=lambda x: x == passphrase)
else:
f('')
class ShowSeedDialog(WizardDialog):
seed_text = StringProperty('')
ext = False
message = _(
"If you forget your PIN or lose your device, your seed phrase will be the only way to recover your funds."
)
def __init__(self, wizard, **kwargs):
super(ShowSeedDialog, self).__init__(wizard, **kwargs)
self.seed_text = kwargs['seed_text']
def on_parent(self, instance, value):
if value:
app = App.get_running_app()
self._back = _back = partial(self.ids.back.dispatch, 'on_release')
def options_dialog(self):
from .seed_options import SeedOptionsDialog
def callback(status):
self.ext = status
d = SeedOptionsDialog(self.ext, callback)
d.open()
def get_params(self, b):
return (self.ext, )
def passphrase_dialog(self, run_next):
title = _('Seed extension')
message = '\n'.join([
_('You may extend your seed with custom words.'),
_('Your seed extension must be saved together with your seed.'),
])
warning = '\n'.join([
_('Note that this is NOT your encryption password.'),
_('If you do not know what this is, leave this field empty.'),
])
self.line_dialog(title=title,
message=message,
warning=warning,
default='',
test=lambda x: True,
run_next=run_next)
def request_password(self, run_next):
def callback(pin):
if pin:
self.run('confirm_password', pin, run_next)
else:
run_next(None, None)
self.password_dialog(_('Choose a PIN code'), callback)
def fx_status(self):
fx = self.app.fx
if fx.is_enabled():
source = fx.exchange.name()
ccy = fx.get_currency()
return '%s [%s]' % (ccy, source)
else:
return _('None')
def on_currency(self, ccy):
b = (ccy != _('None'))
self.fx.set_enabled(b)
if b:
if ccy != self.fx.get_currency():
self.fx.set_currency(ccy)
self.app.fiat_unit = ccy
Clock.schedule_once(lambda dt: self.add_exchanges())
def do_delete(self, obj):
from .dialogs.question import Question
def cb(result):
if result:
self.app.wallet.remove_payment_request(obj.address, self.app.electrum_config)
self.update()
d = Question(_('Delete request?'), cb)
d.open()
def description_dialog(self, screen):
from .uix.dialogs.label_dialog import LabelDialog
text = screen.message
def callback(text):
screen.message = text
d = LabelDialog(_('Enter description'), text, callback)
d.open()
def create_addresses(self):
def task():
self.wallet.synchronize()
self.wallet.storage.write()
self.terminate()
msg = _(
"Bitcoin Nano wallet is generating your addresses, please wait.")
self.waiting_dialog(task, msg)
def on_keyboard(self, instance, key, keycode, codepoint, modifiers):
if key == 27 and self.is_exit is False:
self.is_exit = True
self.show_info(_('Press again to exit'))
return True
# override settings button
if key in (319, 282): # f1/settings button on android
# self.gui.main_gui.toggle_settings(self)
return True
def do_delete(self, obj):
from .dialogs.question import Question
def cb(result):
if result:
self.app.wallet.invoices.remove(obj.key)
self.app.update_tab('invoices')
d = Question(_('Delete invoice?'), cb)
d.open()
def confirm_password(self, pin, run_next):
def callback(conf):
if conf == pin:
run_next(pin, False)
else:
self.show_error(_('PIN mismatch'))
self.run('request_password', run_next)
self.password_dialog(_('Confirm your PIN code'), callback)
def __init__(self, wizard, **kwargs):
super(RestoreSeedDialog, self).__init__(wizard, **kwargs)
self._test = kwargs['test']
from bitcoinnano.mnemonic import Mnemonic
from bitcoinnano.old_mnemonic import words as old_wordlist
self.words = set(Mnemonic('en').wordlist).union(set(old_wordlist))
self.ids.text_input_seed.text = test_seed if is_test else ''
self.message = _(
'Please type your seed phrase using the virtual keyboard.')
self.title = _('Enter Seed')
self.ext = False
# Modifying the style of the input method
for line in [self.ids.line1, self.ids.line2, self.ids.line3]:
for c in line.children:
if isinstance(c, Button):
c.font_size = '20sp'
c.font_name = 'gui/kivy/data/fonts/SourceHanSansK-Bold.ttf'
def restore_from_key(self):
if self.wallet_type == 'standard':
v = keystore.is_master_key
title = _("Create keystore from a master key")
message = ' '.join([
_("To create a watching-only wallet, please enter your master public key (xpub/ypub/zpub)."
),
_("To create a spending wallet, please enter a master private key (xprv/yprv/zprv)."
)
])
self.add_xpub_dialog(title=title,
message=message,
run_next=self.on_restore_from_key,
is_valid=v)
else:
i = len(self.keystores) + 1
self.add_cosigner_dialog(index=i,
run_next=self.on_restore_from_key,
is_valid=keystore.is_bip32_key)
def on_address(self, addr):
req = self.app.wallet.get_payment_request(addr, self.app.electrum_config)
self.screen.status = ''
if req:
self.screen.message = req.get('memo', '')
amount = req.get('amount')
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
status = req.get('status', PR_UNKNOWN)
self.screen.status = _('Payment received') if status == PR_PAID else ''
Clock.schedule_once(lambda dt: self.update_qr())
def export_private_keys(self, pk_label, addr):
def show_private_key(addr, pk_label, password):
if self.wallet.has_password() and password is None:
return
key = str(self.wallet.export_private_key(addr, password)[0])
pk_label.data = key
self.protected(
_("Enter your PIN code in order to decrypt your private key"),
show_private_key, (addr, pk_label))
def on_ref_label(self, label, touch):
if label.touched:
label.touched = False
self.qr_dialog(label.name, label.data, True)
else:
label.touched = True
self._clipboard.copy(label.data)
Clock.schedule_once(lambda dt: self.show_info(
_('Text copied to clipboard.\nTap again to display it as QR code.'
)))