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import re
import sys
import threading
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import PyQt4.QtCore as QtCore
import electrum
from electrum.i18n import _
from electrum import Wallet
from electrum import bitcoin
from electrum import util
import seed_dialog
from network_dialog import NetworkDialog
from util import *
from electrum.plugins import always_hook, run_hook
from electrum.mnemonic import prepare_seed
MSG_ENTER_ANYTHING = _("Please enter a seed phrase, a master key, a list of Bitcoin addresses, or a list of private keys")
MSG_SHOW_MPK = _("Here is your master public key")
MSG_ENTER_MPK = _("Please enter your master public key")
MSG_ENTER_SEED_OR_MPK = _("Please enter a seed phrase or a master key (xpub or xprv)")
MSG_VERIFY_SEED = _("Your seed is important!") + "\n" + _("To make sure that you have properly saved your seed, please retype it here.")
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.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()
class InstallWizard(WindowModalDialog, MessageBoxMixin):
def __init__(self, app, config, network, storage):
title = 'Electrum' + ' - ' + _('Install Wizard')
WindowModalDialog.__init__(self, None, title=title)
self.app = app
self.config = config
self.network = network
self.storage = storage
self.setMinimumSize(575, 400)
self.setMaximumSize(575, 400)
self.connect(self, QtCore.SIGNAL('accept'), self.accept)
self.stack = QStackedLayout()
self.setLayout(self.stack)
def set_layout(self, layout):
w = QWidget()
w.setLayout(layout)
self.stack.addWidget(w)
self.stack.setCurrentWidget(w)
self.show()
def restore_or_create(self):
vbox = QVBoxLayout()
main_label = QLabel(_("Electrum could not find an existing wallet."))
vbox.addWidget(main_label)
grid = QGridLayout()
grid.setSpacing(5)
gb1 = QGroupBox(_("What do you want to do?"))
vbox.addWidget(gb1)
vbox1 = QVBoxLayout()
gb1.setLayout(vbox1)
b1 = QRadioButton(gb1)
b1.setText(_("Create new wallet"))
b1.setChecked(True)
b2 = QRadioButton(gb1)
b2.setText(_("Restore a wallet or import keys"))
group1 = QButtonGroup()
group1.addButton(b1)
group1.addButton(b2)
vbox1.addWidget(b1)
vbox1.addWidget(b2)
gb2 = QGroupBox(_("Wallet type:"))
vbox.addWidget(gb2)
vbox2 = QVBoxLayout()
gb2.setLayout(vbox2)
group2 = QButtonGroup()
self.wallet_types = [
('standard', _("Standard wallet")),
('twofactor', _("Wallet with two-factor authentication")),
('multisig', _("Multi-signature wallet")),
('hardware', _("Hardware wallet")),
]
for i, (wtype,name) in enumerate(self.wallet_types):
if not filter(lambda x:x[0]==wtype, electrum.wallet.wallet_types):
continue
button = QRadioButton(gb2)
button.setText(name)
vbox2.addWidget(button)
group2.addButton(button)
group2.setId(button, i)
if i==0:
button.setChecked(True)
vbox.addStretch(1)
vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _('Next'))))
self.set_layout(vbox)
self.show()
self.raise_()
if not self.exec_():
return None, None
action = 'create' if b1.isChecked() else 'restore'
wallet_type = self.wallet_types[group2.checkedId()][0]
return action, wallet_type
def verify_seed(self, seed, sid, func=None):
r = self.enter_seed_dialog(MSG_VERIFY_SEED, sid, func)
if not r:
return
if prepare_seed(r) != prepare_seed(seed):
self.show_error(_('Incorrect seed'))
return False
else:
return True
def get_seed_text(self, seed_e):
text = unicode(seed_e.toPlainText()).strip()
text = ' '.join(text.split())
return text
def is_any(self, text):
return Wallet.is_seed(text) or Wallet.is_old_mpk(text) or Wallet.is_xpub(text) or Wallet.is_xprv(text) or Wallet.is_address(text) or Wallet.is_private_key(text)
def is_mpk(self, text):
return Wallet.is_xpub(text) or Wallet.is_old_mpk(text)
def enter_seed_dialog(self, msg, sid, func=None):
if func is None:
func = self.is_any
vbox, seed_e = seed_dialog.enter_seed_box(msg, self, sid)
vbox.addStretch(1)
button = OkButton(self, _('Next'))
vbox.addLayout(Buttons(CancelButton(self), button))
button.setEnabled(False)
seed_e.textChanged.connect(lambda: button.setEnabled(func(self.get_seed_text(seed_e))))
self.set_layout(vbox)
if not self.exec_():
return
return self.get_seed_text(seed_e)
def multi_mpk_dialog(self, xpub_hot, n):
vbox = QVBoxLayout()
scroll = QScrollArea()
scroll.setEnabled(True)
scroll.setWidgetResizable(True)
vbox.addWidget(scroll)
w = QWidget()
scroll.setWidget(w)
innerVbox = QVBoxLayout()
w.setLayout(innerVbox)
vbox0 = seed_dialog.show_seed_box(MSG_SHOW_MPK, xpub_hot, 'hot')
innerVbox.addLayout(vbox0)
entries = []
for i in range(n):
msg = _("Please enter the master public key of cosigner") + ' %d'%(i+1)
vbox2, seed_e2 = seed_dialog.enter_seed_box(msg, self, 'cold')
innerVbox.addLayout(vbox2)
entries.append(seed_e2)
vbox.addStretch(1)
button = OkButton(self, _('Next'))
vbox.addLayout(Buttons(CancelButton(self), button))
button.setEnabled(False)
f = lambda: button.setEnabled( map(lambda e: Wallet.is_xpub(self.get_seed_text(e)), entries) == [True]*len(entries))
for e in entries:
e.textChanged.connect(f)
self.set_layout(vbox)
if not self.exec_():
return
return map(lambda e: self.get_seed_text(e), entries)
def multi_seed_dialog(self, n):
vbox = QVBoxLayout()
scroll = QScrollArea()
scroll.setEnabled(True)
scroll.setWidgetResizable(True)
vbox.addWidget(scroll)
w = QWidget()
scroll.setWidget(w)
innerVbox = QVBoxLayout()
w.setLayout(innerVbox)
vbox1, seed_e1 = seed_dialog.enter_seed_box(MSG_ENTER_SEED_OR_MPK, self, 'hot')
innerVbox.addLayout(vbox1)
entries = [seed_e1]
for i in range(n):
vbox2, seed_e2 = seed_dialog.enter_seed_box(MSG_ENTER_SEED_OR_MPK, self, 'cold')
innerVbox.addLayout(vbox2)
entries.append(seed_e2)
vbox.addStretch(1)
button = OkButton(self, _('Next'))
vbox.addLayout(Buttons(CancelButton(self), button))
button.setEnabled(False)
f = lambda: button.setEnabled( map(lambda e: self.is_any(self.get_seed_text(e)), entries) == [True]*len(entries))
for e in entries:
e.textChanged.connect(f)
self.set_layout(vbox)
if not self.exec_():
return
return map(lambda e: self.get_seed_text(e), entries)
def waiting_dialog(self, task, msg= _("Electrum is generating your addresses, please wait.")):
def target():
task()
self.emit(QtCore.SIGNAL('accept'))
vbox = QVBoxLayout()
self.waiting_label = QLabel(msg)
vbox.addWidget(self.waiting_label)
self.set_layout(vbox)
t = threading.Thread(target = target)
t.start()
self.exec_()
def network_dialog(self):
grid = QGridLayout()
grid.setSpacing(5)
label = QLabel(_("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 if you have a preference though feel free to select a server manually.") + "\n\n" \
+ _("How do you want to connect to a server:")+" ")
label.setWordWrap(True)
grid.addWidget(label, 0, 0)
gb = QGroupBox()
b1 = QRadioButton(gb)
b1.setText(_("Auto connect"))
b1.setChecked(True)
b2 = QRadioButton(gb)
b2.setText(_("Select server manually"))
grid.addWidget(b1,1,0)
grid.addWidget(b2,2,0)
vbox = QVBoxLayout()
vbox.addLayout(grid)
vbox.addStretch(1)
vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _('Next'))))
self.set_layout(vbox)
if not self.exec_():
return
if b2.isChecked():
return NetworkDialog(self.network, self.config, None).do_exec()
else:
self.config.set_key('auto_connect', True, True)
self.network.auto_connect = True
return
def show_message(self, msg, icon=None):
vbox = QVBoxLayout()
self.set_layout(vbox)
if icon:
logo = QLabel()
logo.setPixmap(icon)
vbox.addWidget(logo)
vbox.addWidget(QLabel(msg))
vbox.addStretch(1)
vbox.addLayout(Buttons(CloseButton(self)))
if not self.exec_():
return None
def choice(self, title, msg, choices):
vbox = QVBoxLayout()
self.set_layout(vbox)
vbox.addWidget(QLabel(title))
gb2 = QGroupBox(msg)
vbox.addWidget(gb2)
vbox2 = QVBoxLayout()
gb2.setLayout(vbox2)
group2 = QButtonGroup()
for i,c in enumerate(choices):
button = QRadioButton(gb2)
button.setText(c[1])
vbox2.addWidget(button)
group2.addButton(button)
group2.setId(button, i)
if i==0:
button.setChecked(True)
vbox.addStretch(1)
vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _('Next'))))
if not self.exec_():
return
wallet_type = choices[group2.checkedId()][0]
return wallet_type
def multisig_choice(self):
vbox = QVBoxLayout()
self.set_layout(vbox)
vbox.addWidget(QLabel(_("Multi Signature Wallet")))
cw = CosignWidget(2, 2)
vbox.addWidget(cw, 1)
vbox.addWidget(QLabel(_("Please choose the number of signatures needed to unlock funds in your wallet") + ':'))
m_edit = QSpinBox()
n_edit = QSpinBox()
m_edit.setValue(2)
n_edit.setValue(2)
n_edit.setMinimum(2)
n_edit.setMaximum(15)
m_edit.setMinimum(1)
m_edit.setMaximum(2)
n_edit.valueChanged.connect(m_edit.setMaximum)
n_edit.valueChanged.connect(cw.set_n)
m_edit.valueChanged.connect(cw.set_m)
hbox = QHBoxLayout()
hbox.addWidget(QLabel(_('Require')))
hbox.addWidget(m_edit)
hbox.addWidget(QLabel(_('of')))
hbox.addWidget(n_edit)
hbox.addWidget(QLabel(_('signatures')))
hbox.addStretch(1)
vbox.addLayout(hbox)
vbox.addStretch(1)
vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _('Next'))))
if not self.exec_():
return
m = int(m_edit.value())
n = int(n_edit.value())
wallet_type = '%dof%d'%(m,n)
return wallet_type
def question(self, msg, yes_label=_('OK'), no_label=_('Cancel'), icon=None):
vbox = QVBoxLayout()
self.set_layout(vbox)
if icon:
logo = QLabel()
logo.setPixmap(icon)
vbox.addWidget(logo)
label = QLabel(msg)
label.setWordWrap(True)
vbox.addWidget(label)
vbox.addStretch(1)
vbox.addLayout(Buttons(CancelButton(self, no_label), OkButton(self, yes_label)))
if not self.exec_():
return None
return True
def show_seed(self, seed, sid):
vbox = seed_dialog.show_seed_box_msg(seed, sid)
vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _("Next"))))
self.set_layout(vbox)
return self.exec_()
def password_dialog(self):
msg = _("Please choose a password to encrypt your wallet keys.")+'\n'\
+_("Leave these fields empty if you want to disable encryption.")
from password_dialog import make_password_dialog, run_password_dialog
self.set_layout( make_password_dialog(self, None, msg) )
return run_password_dialog(self, None, self)[2]
def run(self, action):
if self.storage.file_exists and action != 'new':
path = self.storage.path
msg = _("The file '%s' contains an incompletely created wallet.\n"
"Do you want to complete its creation now?") % path
if not question(msg):
if question(_("Do you want to delete '%s'?") % path):
os.remove(path)
self.show_warning(_('The file was removed'))
return
return
self.show()
if action == 'new':
action, wallet_type = self.restore_or_create()
else:
wallet_type = None
try:
wallet = self.run_wallet_type(action, wallet_type)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
self.show_error(str(e))
return
return wallet
def run_wallet_type(self, action, wallet_type):
if action in ['create', 'restore']:
if wallet_type == 'multisig':
wallet_type = self.multisig_choice()
if not wallet_type:
return
elif wallet_type == 'hardware':
hardware_wallets = []
for item in electrum.wallet.wallet_types:
t, name, description, loader = item
if t == 'hardware':
try:
p = loader()
except:
util.print_error("cannot load plugin for:", name)
continue
if p:
hardware_wallets.append((name, description))
wallet_type = self.choice(_("Hardware Wallet"), 'Select your hardware wallet', hardware_wallets)
if not wallet_type:
return
elif wallet_type == 'twofactor':
wallet_type = '2fa'
if action == 'create':
self.storage.put('wallet_type', wallet_type)
if action is None:
return
if action == 'restore':
wallet = self.restore(wallet_type)
if not wallet:
return
action = None
else:
wallet = Wallet(self.storage)
action = wallet.get_action()
# fixme: password is only needed for multiple accounts
password = None
# load wallet in plugins
always_hook('installwizard_load_wallet', wallet, self)
while action is not None:
util.print_error("installwizard:", wallet, action)
if action == 'create_seed':
lang = self.config.get('language')
seed = wallet.make_seed(lang)
if not self.show_seed(seed, None):
return
self.app.clipboard().clear()
if not self.verify_seed(seed, None):
return
password = self.password_dialog()
wallet.add_seed(seed, password)
wallet.create_master_keys(password)
elif action == 'add_cosigners':
n = int(re.match('(\d+)of(\d+)', wallet.wallet_type).group(2))
xpub1 = wallet.master_public_keys.get("x1/")
r = self.multi_mpk_dialog(xpub1, n - 1)
if not r:
return
for i, xpub in enumerate(r):
wallet.add_master_public_key("x%d/"%(i+2), xpub)
elif action == 'create_accounts':
wallet.create_main_account(password)
self.waiting_dialog(wallet.synchronize)
else:
f = always_hook('get_wizard_action', self, wallet, action)
if not f:
raise BaseException('unknown wizard action', action)
r = f(wallet, self)
if not r:
return
# next action
action = wallet.get_action()
if self.network:
# show network dialog if config does not exist
if self.config.get('server') is None:
self.network_dialog()
else:
self.show_warning(_('You are offline'))
# start wallet threads
wallet.start_threads(self.network)
if action == 'restore':
self.waiting_dialog(lambda: wallet.wait_until_synchronized(self.waiting_label.setText))
if self.network:
msg = _("Recovery successful") if wallet.is_found() else _("No transactions found for this seed")
else:
msg = _("This wallet was restored offline. It may contain more addresses than displayed.")
self.show_message(msg)
return wallet
def restore(self, t):
if t == 'standard':
text = self.enter_seed_dialog(MSG_ENTER_ANYTHING, None)
if not text:
return
password = self.password_dialog() if Wallet.is_seed(text) or Wallet.is_xprv(text) or Wallet.is_private_key(text) else None
wallet = Wallet.from_text(text, password, self.storage)
elif re.match('(\d+)of(\d+)', t):
n = int(re.match('(\d+)of(\d+)', t).group(2))
key_list = self.multi_seed_dialog(n - 1)
if not key_list:
return
password = self.password_dialog() if any(map(lambda x: Wallet.is_seed(x) or Wallet.is_xprv(x), key_list)) else None
wallet = Wallet.from_multisig(key_list, password, self.storage, t)
else:
self.storage.put('wallet_type', t)
# call the constructor to load the plugin (side effect)
Wallet(self.storage)
wallet = always_hook('installwizard_restore', self, self.storage)
if not wallet:
util.print_error("no wallet")
return
# create first keys offline
self.waiting_dialog(wallet.synchronize)
return wallet