import sys
import os
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import PyQt4.QtCore as QtCore
import electrum
from electrum.wallet import Wallet
from electrum.util import UserCancelled
from electrum.base_wizard import BaseWizard
from electrum.i18n import _
from seed_dialog import SeedLayout, KeysLayout
from network_dialog import NetworkChoiceLayout
from util import *
from password_dialog import PasswordLayout, PW_NEW
class GoBack(Exception):
pass
MSG_GENERATING_WAIT = _("Electrum is generating your addresses, please wait...")
MSG_ENTER_ANYTHING = _("Please enter a seed phrase, a master key, a list of "
"Bitcoin addresses, or a list of private keys")
MSG_ENTER_SEED_OR_MPK = _("Please enter a seed phrase or a master key (xpub or xprv):")
MSG_COSIGNER = _("Please enter the master public key of cosigner #%d:")
MSG_ENTER_PASSWORD = _("Choose a password to encrypt your wallet keys.") + '\n'\
+ _("Leave this field empty if you want to disable encryption.")
MSG_RESTORE_PASSPHRASE = \
_("Please enter your seed derivation passphrase. "
"Note: this is NOT your encryption password. "
"Leave this field empty if you did not use one or are unsure.")
class CosignWidget(QWidget):
size = 120
def __init__(self, m, n):
QWidget.__init__(self)
self.R = QRect(0, 0, self.size, self.size)
self.setGeometry(self.R)
self.setMinimumHeight(self.size)
self.setMaximumHeight(self.size)
self.m = m
self.n = n
def set_n(self, n):
self.n = n
self.update()
def set_m(self, m):
self.m = m
self.update()
def paintEvent(self, event):
import math
bgcolor = self.palette().color(QPalette.Background)
pen = QPen(bgcolor, 7, QtCore.Qt.SolidLine)
qp = QPainter()
qp.begin(self)
qp.setPen(pen)
qp.setRenderHint(QPainter.Antialiasing)
qp.setBrush(Qt.gray)
for i in range(self.n):
alpha = int(16* 360 * i/self.n)
alpha2 = int(16* 360 * 1/self.n)
qp.setBrush(Qt.green if i<self.m else Qt.gray)
qp.drawPie(self.R, alpha, alpha2)
qp.end()
def wizard_dialog(func):
def func_wrapper(*args, **kwargs):
run_next = kwargs['run_next']
wizard = args[0]
wizard.back_button.setText(_('Back') if wizard.can_go_back() else _('Cancel'))
try:
out = func(*args, **kwargs)
except GoBack:
wizard.go_back() if wizard.can_go_back() else wizard.close()
return
except UserCancelled:
return
#if out is None:
# out = ()
if type(out) is not tuple:
out = (out,)
apply(run_next, out)
return func_wrapper
# WindowModalDialog must come first as it overrides show_error
class InstallWizard(QDialog, MessageBoxMixin, BaseWizard):
def __init__(self, config, app, plugins, storage):
BaseWizard.__init__(self, config, storage)
QDialog.__init__(self, None)
self.setWindowTitle('Electrum - ' + _('Install Wizard'))
self.app = app
self.config = config
# Set for base base class
self.plugins = plugins
self.language_for_seed = config.get('language')
self.setMinimumSize(600, 400)
self.connect(self, QtCore.SIGNAL('accept'), self.accept)
self.title = QLabel()
self.main_widget = QWidget()
self.back_button = QPushButton(_("Back"), self)
self.next_button = QPushButton(_("Next"), self)
self.next_button.setDefault(True)
self.logo = QLabel()
self.please_wait = QLabel(_("Please wait..."))
self.please_wait.setAlignment(Qt.AlignCenter)
self.icon_filename = None
self.loop = QEventLoop()
self.rejected.connect(lambda: self.loop.exit(0))
self.back_button.clicked.connect(lambda: self.loop.exit(1))
self.next_button.clicked.connect(lambda: self.loop.exit(2))
outer_vbox = QVBoxLayout(self)
inner_vbox = QVBoxLayout()
inner_vbox = QVBoxLayout()
inner_vbox.addWidget(self.title)
inner_vbox.addWidget(self.main_widget)
inner_vbox.addStretch(1)
inner_vbox.addWidget(self.please_wait)
inner_vbox.addStretch(1)
icon_vbox = QVBoxLayout()
icon_vbox.addWidget(self.logo)
icon_vbox.addStretch(1)
hbox = QHBoxLayout()
hbox.addLayout(icon_vbox)
hbox.addSpacing(5)
hbox.addLayout(inner_vbox)
hbox.setStretchFactor(inner_vbox, 1)
outer_vbox.addLayout(hbox)
outer_vbox.addLayout(Buttons(self.back_button, self.next_button))
self.set_icon(':icons/electrum.png')
self.show()
self.raise_()
self.refresh_gui() # Need for QT on MacOSX. Lame.
def run_and_get_wallet(self):
path = self.storage.path
if self.storage.requires_split():
self.hide()
msg = _("The wallet '%s' contains multiple accounts, which are no longer supported in Electrum 2.7.\n\n"
"Do you want to split your wallet into multiple files?"%path)
if not self.question(msg):
return
file_list = '\n'.join(self.storage.split_accounts())
msg = _('Your accounts have been moved to') + ':\n' + file_list + '\n\n'+ _('Do you want to delete the old file') + ':\n' + path
if self.question(msg):
os.remove(path)
self.show_warning(_('The file was removed'))
return
if self.storage.requires_upgrade():
self.hide()
msg = _("The format of your wallet '%s' must be upgraded for Electrum. This change will not be backward compatible"%path)
if not self.question(msg):
return
self.storage.upgrade()
self.show_warning(_('Your wallet was upgraded successfully'))
self.wallet = Wallet(self.storage)
self.terminate()
return self.wallet
action = self.storage.get_action()
if action and action != 'new':
self.hide()
msg = _("The file '%s' contains an incompletely created wallet.\n"
"Do you want to complete its creation now?") % path
if not self.question(msg):
if self.question(_("Do you want to delete '%s'?") % path):
os.remove(path)
self.show_warning(_('The file was removed'))
return
self.show()
if action:
# self.wallet is set in run
self.run(action)
return self.wallet
def finished(self):
"""Called in hardware client wrapper, in order to close popups."""
return
def on_error(self, exc_info):
if not isinstance(exc_info[1], UserCancelled):
traceback.print_exception(*exc_info)
self.show_error(str(exc_info[1]))
def set_icon(self, filename):
prior_filename, self.icon_filename = self.icon_filename, filename
self.logo.setPixmap(QPixmap(filename).scaledToWidth(60))
return prior_filename
def set_main_layout(self, layout, title=None, raise_on_cancel=True,
next_enabled=True):
self.title.setText("<b>%s</b>"%title if title else "")
self.title.setVisible(bool(title))
# Get rid of any prior layout by assigning it to a temporary widget
prior_layout = self.main_widget.layout()
if prior_layout:
QWidget().setLayout(prior_layout)
self.main_widget.setLayout(layout)
self.back_button.setEnabled(True)
self.next_button.setEnabled(next_enabled)
if next_enabled:
self.next_button.setFocus()
self.main_widget.setVisible(True)
self.please_wait.setVisible(False)
result = self.loop.exec_()
if not result and raise_on_cancel:
raise UserCancelled
if result == 1:
raise GoBack
self.title.setVisible(False)
self.back_button.setEnabled(False)
self.next_button.setEnabled(False)
self.main_widget.setVisible(False)
self.please_wait.setVisible(True)
self.refresh_gui()
return result
def refresh_gui(self):
# For some reason, to refresh the GUI this needs to be called twice
self.app.processEvents()
self.app.processEvents()
def remove_from_recently_open(self, filename):
self.config.remove_from_recently_open(filename)
def text_input(self, title, message, is_valid):
slayout = KeysLayout(parent=self, title=message, is_valid=is_valid)
self.set_main_layout(slayout, title, next_enabled=False)
return slayout.get_text()
def seed_input(self, title, message, is_seed, options):
slayout = SeedLayout(title=message, is_seed=is_seed, options=options, parent=self)
self.set_main_layout(slayout, title, next_enabled=False)
return slayout.get_seed(), slayout.is_bip39, slayout.is_ext
@wizard_dialog
def add_xpub_dialog(self, title, message, is_valid, run_next):
return self.text_input(title, message, is_valid)
@wizard_dialog
def add_cosigner_dialog(self, run_next, index, is_valid):
title = _("Add Cosigner") + " %d"%index
message = ' '.join([
_('Please enter the master public key (xpub) of your cosigner.'),
_('Enter their master private key (xprv) if you want to be able to sign for them.')
])
return self.text_input(title, message, is_valid)
@wizard_dialog
def restore_seed_dialog(self, run_next, test):
options = []
if self.opt_ext:
options.append('ext')
if self.opt_bip39:
options.append('bip39')
title = _('Enter Seed')
message = _('Please enter your seed phrase in order to restore your wallet.')
return self.seed_input(title, message, test, options)
@wizard_dialog
def confirm_seed_dialog(self, run_next, test):
self.app.clipboard().clear()
title = _('Confirm Seed')
message = ' '.join([
_('Your seed is important!'),
_('If you lose your seed, your money will be permanently lost.'),
_('To make sure that you have properly saved your seed, please retype it here.')
])
seed, is_bip39, is_ext = self.seed_input(title, message, test, None)
return seed
@wizard_dialog
def show_seed_dialog(self, run_next, seed_text):
title = _("Your wallet generation seed is:")
slayout = SeedLayout(seed=seed_text, title=title, msg=True, options=['ext'])
self.set_main_layout(slayout)
return slayout.is_ext
def pw_layout(self, msg, kind):
playout = PasswordLayout(None, msg, kind, self.next_button)
self.set_main_layout(playout.layout())
return playout.new_password()
@wizard_dialog
def request_password(self, run_next):
"""Request the user enter a new password and confirm it. Return
the password or None for no password."""
return self.pw_layout(MSG_ENTER_PASSWORD, PW_NEW)
def show_restore(self, wallet, network):
# FIXME: these messages are shown after the install wizard is
# finished and the window closed. On MacOSX they appear parented
# with a re-appeared ghost install wizard window...
if network:
def task():
wallet.wait_until_synchronized()
if wallet.is_found():
msg = _("Recovery successful")
else:
msg = _("No transactions found for this seed")
self.emit(QtCore.SIGNAL('synchronized'), msg)
self.connect(self, QtCore.SIGNAL('synchronized'), self.show_message)
t = threading.Thread(target = task)
t.daemon = True
t.start()
else:
msg = _("This wallet was restored offline. It may "
"contain more addresses than displayed.")
self.show_message(msg)
@wizard_dialog
def confirm_dialog(self, title, message, run_next):
self.confirm(message, title)
def confirm(self, message, title):
vbox = QVBoxLayout()
vbox.addWidget(WWLabel(message))
self.set_main_layout(vbox, title)
@wizard_dialog
def action_dialog(self, action, run_next):
self.run(action)
def terminate(self):
self.emit(QtCore.SIGNAL('accept'))
def waiting_dialog(self, task, msg):
self.please_wait.setText(MSG_GENERATING_WAIT)
self.refresh_gui()
t = threading.Thread(target = task)
t.start()
@wizard_dialog
def choice_dialog(self, title, message, choices, run_next):
c_values = map(lambda x: x[0], choices)
c_titles = map(lambda x: x[1], choices)
clayout = ChoicesLayout(message, c_titles)
vbox = QVBoxLayout()
vbox.addLayout(clayout.layout())
self.set_main_layout(vbox, title)
action = c_values[clayout.selected_index()]
return action
def query_choice(self, msg, choices):
"""called by hardware wallets"""
clayout = ChoicesLayout(msg, choices)
vbox = QVBoxLayout()
vbox.addLayout(clayout.layout())
self.set_main_layout(vbox, '')
return clayout.selected_index()
@wizard_dialog
def line_dialog(self, run_next, title, message, default, test, warning=''):
vbox = QVBoxLayout()
vbox.addWidget(WWLabel(message))
line = QLineEdit()
line.setText(default)
def f(text):
self.next_button.setEnabled(test(text))
line.textEdited.connect(f)
vbox.addWidget(line)
vbox.addWidget(WWLabel(warning))
self.set_main_layout(vbox, title, next_enabled=test(default))
return ' '.join(unicode(line.text()).split())
@wizard_dialog
def show_xpub_dialog(self, xpub, run_next):
msg = ' '.join([
_("Here is your master public key."),
_("Please share it with your cosigners.")
])
vbox = QVBoxLayout()
layout = SeedLayout(xpub, title=msg, icon=False)
vbox.addLayout(layout.layout())
self.set_main_layout(vbox, _('Master Public Key'))
return None
def init_network(self, network):
message = _("Electrum communicates with remote servers to get "
"information about your transactions and addresses. The "
"servers all fulfil the same purpose only differing in "
"hardware. In most cases you simply want to let Electrum "
"pick one at random. However if you prefer feel free to "
"select a server manually.")
choices = [_("Auto connect"), _("Select server manually")]
title = _("How do you want to connect to a server? ")
clayout = ChoicesLayout(message, choices)
self.back_button.setText(_('Cancel'))
self.set_main_layout(clayout.layout(), title)
r = clayout.selected_index()
if r == 0:
auto_connect = True
elif r == 1:
auto_connect = True
nlayout = NetworkChoiceLayout(network, self.config, wizard=True)
if self.set_main_layout(nlayout.layout()):
auto_connect = False
else:
auto_connect = True
network.auto_connect = auto_connect
self.config.set_key('auto_connect', auto_connect, True)
@wizard_dialog
def multisig_dialog(self, run_next):
cw = CosignWidget(2, 2)
m_edit = QSlider(Qt.Horizontal, self)
n_edit = QSlider(Qt.Horizontal, self)
n_edit.setMinimum(2)
n_edit.setMaximum(15)
m_edit.setMinimum(1)
m_edit.setMaximum(2)
n_edit.setValue(2)
m_edit.setValue(2)
n_label = QLabel()
m_label = QLabel()
grid = QGridLayout()
grid.addWidget(n_label, 0, 0)
grid.addWidget(n_edit, 0, 1)
grid.addWidget(m_label, 1, 0)
grid.addWidget(m_edit, 1, 1)
def on_m(m):
m_label.setText(_('Require %d signatures')%m)
cw.set_m(m)
def on_n(n):
n_label.setText(_('From %d cosigners')%n)
cw.set_n(n)
m_edit.setMaximum(n)
n_edit.valueChanged.connect(on_n)
m_edit.valueChanged.connect(on_m)
on_n(2)
on_m(2)
vbox = QVBoxLayout()
vbox.addWidget(cw)
vbox.addWidget(WWLabel(_("Choose the number of signatures needed to unlock funds in your wallet:")))
vbox.addLayout(grid)
self.set_main_layout(vbox, _("Multi-Signature Wallet"))
m = int(m_edit.value())
n = int(n_edit.value())
return (m, n)