electrum-bitcoinprivate/lib/base_wizard.py

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#!/usr/bin/env python
#
# Electrum - lightweight Bitcoin client
# Copyright (C) 2016 Thomas Voegtlin
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import os
from electrum.wallet import Wallet, Multisig_Wallet
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from i18n import _
class BaseWizard(object):
def __init__(self, config, network, storage):
super(BaseWizard, self).__init__()
self.config = config
self.network = network
self.storage = storage
self.wallet = None
def run(self, action, *args):
'''Entry point of our Installation wizard'''
if not action:
return
if hasattr(self, action):
f = getattr(self, action)
apply(f, *args)
else:
raise BaseException("unknown action", action)
def new(self):
name = os.path.basename(self.storage.path)
msg = "\n".join([
_("Welcome to the Electrum installation wizard."),
_("The wallet '%s' does not exist.") % name,
_("What kind of wallet do you want to create?")
])
choices = [
(_('Standard wallet'), 'create_standard'),
(_('Multi-signature wallet'), 'create_multisig'),
]
self.choice_dialog(msg=msg, choices=choices, run_prev=self.cancel, run_next=self.run)
def choose_seed(self):
msg = ' '.join([
_("Do you want to create a new seed, or to restore a wallet using an existing seed?")
])
choices = [
(_('Create a new seed'), 'create_seed'),
(_('I already have a seed'), 'restore_seed'),
(_('Watching-only wallet'), 'restore_xpub')
]
self.choice_dialog(msg=msg, choices=choices, run_prev=self.new, run_next=self.run)
def create_multisig(self):
def f(m, n):
self.wallet_type = "%dof%d"%(m, n)
self.run('choose_seed')
name = os.path.basename(self.storage.path)
self.multisig_dialog(run_prev=self.new, run_next=f)
def restore_seed(self):
msg = _('Please type your seed phrase using the virtual keyboard.')
self.restore_seed_dialog(run_prev=self.new, run_next=self.enter_pin, test=Wallet.is_seed, message=msg)
def restore_xpub(self):
title = "MASTER PUBLIC KEY"
message = _('To create a watching-only wallet, paste your master public key, or scan it using the camera button.')
self.add_xpub_dialog(run_prev=self.new, run_next=lambda xpub: self.create_wallet(xpub, None), title=title, message=message, test=Wallet.is_mpk)
def create_standard(self):
self.wallet_type = 'standard'
self.run('choose_seed')
def create_wallet(self, text, password):
if self.wallet_type == 'standard':
self.wallet = Wallet.from_text(text, password, self.storage)
self.run('create_addresses')
else:
self.storage.put('wallet_type', self.wallet_type)
self.wallet = Multisig_Wallet(self.storage)
self.wallet.add_seed(text, password)
self.wallet.create_master_keys(password)
action = self.wallet.get_action()
self.run(action)
def add_cosigners(self):
xpub = self.wallet.master_public_keys.get('x1/')
self.show_xpub_dialog(run_prev=self.create_multisig, run_next=self.add_cosigner, xpub=xpub, test=Wallet.is_xpub)
def add_cosigner(self):
def on_xpub(xpub):
self.wallet.add_cosigner(xpub)
i = self.wallet.get_missing_cosigner()
action = 'add_cosigner' if i else 'create_main_account'
self.run(action)
title = "ADD COSIGNER"
message = _('Please paste your cosigners master public key, or scan it using the camera button.')
self.add_xpub_dialog(run_prev=self.add_cosigners, run_next=on_xpub, title=title, message=message, test=Wallet.is_xpub)
def create_main_account(self):
self.wallet.create_main_account()
self.run('create_addresses')
def create_addresses(self):
def task():
self.wallet.create_main_account()
self.wallet.synchronize()
msg= _("Electrum is generating your addresses, please wait.")
self.waiting_dialog(task, msg, on_complete=self.terminate)
def create_seed(self):
from electrum.wallet import BIP32_Wallet
seed = BIP32_Wallet.make_seed()
msg = _("If you forget your PIN or lose your device, your seed phrase will be the "
"only way to recover your funds.")
self.show_seed_dialog(run_prev=self.new, run_next=self.confirm_seed, message=msg, seed_text=seed)
def confirm_seed(self, seed):
assert Wallet.is_seed(seed)
msg = _('Please retype your seed phrase, to confirm that you properly saved it')
self.restore_seed_dialog(run_prev=self.create_seed, run_next=self.enter_pin, test=lambda x: x==seed, message=msg)
def enter_pin(self, seed):
def callback(pin):
action = 'confirm_pin' if pin else 'create_wallet'
self.run(action, (seed, pin))
self.password_dialog('Choose a PIN code', callback)
def confirm_pin(self, seed, pin):
def callback(conf):
if conf == pin:
self.run('create_wallet', (seed, pin))
else:
self.show_error(_('PIN mismatch'))
self.run('enter_pin', (seed,))
self.password_dialog('Confirm your PIN code', callback)
def terminate(self):
self.wallet.start_threads(self.network)
self.dispatch('on_wizard_complete', self.wallet)
def cancel(self):
self.dispatch('on_wizard_complete', None)
return True