LBRY-Vault/electrum/plugins/safe_t/qt.py
2019-01-16 19:11:04 +01:00

493 lines
20 KiB
Python

from functools import partial
import threading
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QGridLayout, QInputDialog, QPushButton
from PyQt5.QtWidgets import QVBoxLayout, QLabel
from electrum.gui.qt.util import *
from electrum.i18n import _
from electrum.plugin import hook
from electrum.util import bh2u
from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
from ..hw_wallet.plugin import only_hook_if_libraries_available
from .safe_t import SafeTPlugin, TIM_NEW, TIM_RECOVER, TIM_MNEMONIC
PASSPHRASE_HELP_SHORT =_(
"Passphrases allow you to access new wallets, each "
"hidden behind a particular case-sensitive passphrase.")
PASSPHRASE_HELP = PASSPHRASE_HELP_SHORT + " " + _(
"You need to create a separate Electrum wallet for each passphrase "
"you use as they each generate different addresses. Changing "
"your passphrase does not lose other wallets, each is still "
"accessible behind its own passphrase.")
RECOMMEND_PIN = _(
"You should enable PIN protection. Your PIN is the only protection "
"for your bitcoins if your device is lost or stolen.")
PASSPHRASE_NOT_PIN = _(
"If you forget a passphrase you will be unable to access any "
"bitcoins in the wallet behind it. A passphrase is not a PIN. "
"Only change this if you are sure you understand it.")
class QtHandler(QtHandlerBase):
pin_signal = pyqtSignal(object)
def __init__(self, win, pin_matrix_widget_class, device):
super(QtHandler, self).__init__(win, device)
self.pin_signal.connect(self.pin_dialog)
self.pin_matrix_widget_class = pin_matrix_widget_class
def get_pin(self, msg):
self.done.clear()
self.pin_signal.emit(msg)
self.done.wait()
return self.response
def pin_dialog(self, msg):
# Needed e.g. when resetting a device
self.clear_dialog()
dialog = WindowModalDialog(self.top_level_window(), _("Enter PIN"))
matrix = self.pin_matrix_widget_class()
vbox = QVBoxLayout()
vbox.addWidget(QLabel(msg))
vbox.addWidget(matrix)
vbox.addLayout(Buttons(CancelButton(dialog), OkButton(dialog)))
dialog.setLayout(vbox)
dialog.exec_()
self.response = str(matrix.get_value())
self.done.set()
class QtPlugin(QtPluginBase):
# Derived classes must provide the following class-static variables:
# icon_file
# pin_matrix_widget_class
def create_handler(self, window):
return QtHandler(window, self.pin_matrix_widget_class(), self.device)
@only_hook_if_libraries_available
@hook
def receive_menu(self, menu, addrs, wallet):
if len(addrs) != 1:
return
for keystore in wallet.get_keystores():
if type(keystore) == self.keystore_class:
def show_address(keystore=keystore):
keystore.thread.add(partial(self.show_address, wallet, addrs[0], keystore))
device_name = "{} ({})".format(self.device, keystore.label)
menu.addAction(_("Show on {}").format(device_name), show_address)
def show_settings_dialog(self, window, keystore):
device_id = self.choose_device(window, keystore)
if device_id:
SettingsDialog(window, self, keystore, device_id).exec_()
def request_safe_t_init_settings(self, wizard, method, device):
vbox = QVBoxLayout()
next_enabled = True
label = QLabel(_("Enter a label to name your device:"))
name = QLineEdit()
hl = QHBoxLayout()
hl.addWidget(label)
hl.addWidget(name)
hl.addStretch(1)
vbox.addLayout(hl)
def clean_text(widget):
text = widget.toPlainText().strip()
return ' '.join(text.split())
if method in [TIM_NEW, TIM_RECOVER]:
gb = QGroupBox()
hbox1 = QHBoxLayout()
gb.setLayout(hbox1)
vbox.addWidget(gb)
gb.setTitle(_("Select your seed length:"))
bg = QButtonGroup()
for i, count in enumerate([12, 18, 24]):
rb = QRadioButton(gb)
rb.setText(_("{:d} words").format(count))
bg.addButton(rb)
bg.setId(rb, i)
hbox1.addWidget(rb)
rb.setChecked(True)
cb_pin = QCheckBox(_('Enable PIN protection'))
cb_pin.setChecked(True)
else:
text = QTextEdit()
text.setMaximumHeight(60)
if method == TIM_MNEMONIC:
msg = _("Enter your BIP39 mnemonic:")
else:
msg = _("Enter the master private key beginning with xprv:")
def set_enabled():
from electrum.bip32 import is_xprv
wizard.next_button.setEnabled(is_xprv(clean_text(text)))
text.textChanged.connect(set_enabled)
next_enabled = False
vbox.addWidget(QLabel(msg))
vbox.addWidget(text)
pin = QLineEdit()
pin.setValidator(QRegExpValidator(QRegExp('[1-9]{0,9}')))
pin.setMaximumWidth(100)
hbox_pin = QHBoxLayout()
hbox_pin.addWidget(QLabel(_("Enter your PIN (digits 1-9):")))
hbox_pin.addWidget(pin)
hbox_pin.addStretch(1)
if method in [TIM_NEW, TIM_RECOVER]:
vbox.addWidget(WWLabel(RECOMMEND_PIN))
vbox.addWidget(cb_pin)
else:
vbox.addLayout(hbox_pin)
passphrase_msg = WWLabel(PASSPHRASE_HELP_SHORT)
passphrase_warning = WWLabel(PASSPHRASE_NOT_PIN)
passphrase_warning.setStyleSheet("color: red")
cb_phrase = QCheckBox(_('Enable passphrases'))
cb_phrase.setChecked(False)
vbox.addWidget(passphrase_msg)
vbox.addWidget(passphrase_warning)
vbox.addWidget(cb_phrase)
wizard.exec_layout(vbox, next_enabled=next_enabled)
if method in [TIM_NEW, TIM_RECOVER]:
item = bg.checkedId()
pin = cb_pin.isChecked()
else:
item = ' '.join(str(clean_text(text)).split())
pin = str(pin.text())
return (item, name.text(), pin, cb_phrase.isChecked())
class Plugin(SafeTPlugin, QtPlugin):
icon_unpaired = ":icons/safe-t_unpaired.png"
icon_paired = ":icons/safe-t.png"
@classmethod
def pin_matrix_widget_class(self):
from safetlib.qt.pinmatrix import PinMatrixWidget
return PinMatrixWidget
class SettingsDialog(WindowModalDialog):
'''This dialog doesn't require a device be paired with a wallet.
We want users to be able to wipe a device even if they've forgotten
their PIN.'''
def __init__(self, window, plugin, keystore, device_id):
title = _("{} Settings").format(plugin.device)
super(SettingsDialog, self).__init__(window, title)
self.setMaximumWidth(540)
devmgr = plugin.device_manager()
config = devmgr.config
handler = keystore.handler
thread = keystore.thread
hs_rows, hs_cols = (64, 128)
def invoke_client(method, *args, **kw_args):
unpair_after = kw_args.pop('unpair_after', False)
def task():
client = devmgr.client_by_id(device_id)
if not client:
raise RuntimeError("Device not connected")
if method:
getattr(client, method)(*args, **kw_args)
if unpair_after:
devmgr.unpair_id(device_id)
return client.features
thread.add(task, on_success=update)
def update(features):
self.features = features
set_label_enabled()
if features.bootloader_hash:
bl_hash = bh2u(features.bootloader_hash)
bl_hash = "\n".join([bl_hash[:32], bl_hash[32:]])
else:
bl_hash = "N/A"
noyes = [_("No"), _("Yes")]
endis = [_("Enable Passphrases"), _("Disable Passphrases")]
disen = [_("Disabled"), _("Enabled")]
setchange = [_("Set a PIN"), _("Change PIN")]
version = "%d.%d.%d" % (features.major_version,
features.minor_version,
features.patch_version)
device_label.setText(features.label)
pin_set_label.setText(noyes[features.pin_protection])
passphrases_label.setText(disen[features.passphrase_protection])
bl_hash_label.setText(bl_hash)
label_edit.setText(features.label)
device_id_label.setText(features.device_id)
initialized_label.setText(noyes[features.initialized])
version_label.setText(version)
clear_pin_button.setVisible(features.pin_protection)
clear_pin_warning.setVisible(features.pin_protection)
pin_button.setText(setchange[features.pin_protection])
pin_msg.setVisible(not features.pin_protection)
passphrase_button.setText(endis[features.passphrase_protection])
language_label.setText(features.language)
def set_label_enabled():
label_apply.setEnabled(label_edit.text() != self.features.label)
def rename():
invoke_client('change_label', label_edit.text())
def toggle_passphrase():
title = _("Confirm Toggle Passphrase Protection")
currently_enabled = self.features.passphrase_protection
if currently_enabled:
msg = _("After disabling passphrases, you can only pair this "
"Electrum wallet if it had an empty passphrase. "
"If its passphrase was not empty, you will need to "
"create a new wallet with the install wizard. You "
"can use this wallet again at any time by re-enabling "
"passphrases and entering its passphrase.")
else:
msg = _("Your current Electrum wallet can only be used with "
"an empty passphrase. You must create a separate "
"wallet with the install wizard for other passphrases "
"as each one generates a new set of addresses.")
msg += "\n\n" + _("Are you sure you want to proceed?")
if not self.question(msg, title=title):
return
invoke_client('toggle_passphrase', unpair_after=currently_enabled)
def change_homescreen():
dialog = QFileDialog(self, _("Choose Homescreen"))
filename, __ = dialog.getOpenFileName()
if not filename:
return # user cancelled
if filename.endswith('.toif'):
img = open(filename, 'rb').read()
if img[:8] != b'TOIf\x90\x00\x90\x00':
handler.show_error('File is not a TOIF file with size of 144x144')
return
else:
from PIL import Image # FIXME
im = Image.open(filename)
if im.size != (128, 64):
handler.show_error('Image must be 128 x 64 pixels')
return
im = im.convert('1')
pix = im.load()
img = bytearray(1024)
for j in range(64):
for i in range(128):
if pix[i, j]:
o = (i + j * 128)
img[o // 8] |= (1 << (7 - o % 8))
img = bytes(img)
invoke_client('change_homescreen', img)
def clear_homescreen():
invoke_client('change_homescreen', b'\x00')
def set_pin():
invoke_client('set_pin', remove=False)
def clear_pin():
invoke_client('set_pin', remove=True)
def wipe_device():
wallet = window.wallet
if wallet and sum(wallet.get_balance()):
title = _("Confirm Device Wipe")
msg = _("Are you SURE you want to wipe the device?\n"
"Your wallet still has bitcoins in it!")
if not self.question(msg, title=title,
icon=QMessageBox.Critical):
return
invoke_client('wipe_device', unpair_after=True)
def slider_moved():
mins = timeout_slider.sliderPosition()
timeout_minutes.setText(_("{:2d} minutes").format(mins))
def slider_released():
config.set_session_timeout(timeout_slider.sliderPosition() * 60)
# Information tab
info_tab = QWidget()
info_layout = QVBoxLayout(info_tab)
info_glayout = QGridLayout()
info_glayout.setColumnStretch(2, 1)
device_label = QLabel()
pin_set_label = QLabel()
passphrases_label = QLabel()
version_label = QLabel()
device_id_label = QLabel()
bl_hash_label = QLabel()
bl_hash_label.setWordWrap(True)
language_label = QLabel()
initialized_label = QLabel()
rows = [
(_("Device Label"), device_label),
(_("PIN set"), pin_set_label),
(_("Passphrases"), passphrases_label),
(_("Firmware Version"), version_label),
(_("Device ID"), device_id_label),
(_("Bootloader Hash"), bl_hash_label),
(_("Language"), language_label),
(_("Initialized"), initialized_label),
]
for row_num, (label, widget) in enumerate(rows):
info_glayout.addWidget(QLabel(label), row_num, 0)
info_glayout.addWidget(widget, row_num, 1)
info_layout.addLayout(info_glayout)
# Settings tab
settings_tab = QWidget()
settings_layout = QVBoxLayout(settings_tab)
settings_glayout = QGridLayout()
# Settings tab - Label
label_msg = QLabel(_("Name this {}. If you have multiple devices "
"their labels help distinguish them.")
.format(plugin.device))
label_msg.setWordWrap(True)
label_label = QLabel(_("Device Label"))
label_edit = QLineEdit()
label_edit.setMinimumWidth(150)
label_edit.setMaxLength(plugin.MAX_LABEL_LEN)
label_apply = QPushButton(_("Apply"))
label_apply.clicked.connect(rename)
label_edit.textChanged.connect(set_label_enabled)
settings_glayout.addWidget(label_label, 0, 0)
settings_glayout.addWidget(label_edit, 0, 1, 1, 2)
settings_glayout.addWidget(label_apply, 0, 3)
settings_glayout.addWidget(label_msg, 1, 1, 1, -1)
# Settings tab - PIN
pin_label = QLabel(_("PIN Protection"))
pin_button = QPushButton()
pin_button.clicked.connect(set_pin)
settings_glayout.addWidget(pin_label, 2, 0)
settings_glayout.addWidget(pin_button, 2, 1)
pin_msg = QLabel(_("PIN protection is strongly recommended. "
"A PIN is your only protection against someone "
"stealing your bitcoins if they obtain physical "
"access to your {}.").format(plugin.device))
pin_msg.setWordWrap(True)
pin_msg.setStyleSheet("color: red")
settings_glayout.addWidget(pin_msg, 3, 1, 1, -1)
# Settings tab - Homescreen
homescreen_label = QLabel(_("Homescreen"))
homescreen_change_button = QPushButton(_("Change..."))
homescreen_clear_button = QPushButton(_("Reset"))
homescreen_change_button.clicked.connect(change_homescreen)
try:
import PIL
except ImportError:
homescreen_change_button.setDisabled(True)
homescreen_change_button.setToolTip(
_("Required package 'PIL' is not available - Please install it.")
)
homescreen_clear_button.clicked.connect(clear_homescreen)
homescreen_msg = QLabel(_("You can set the homescreen on your "
"device to personalize it. You must "
"choose a {} x {} monochrome black and "
"white image.").format(hs_rows, hs_cols))
homescreen_msg.setWordWrap(True)
settings_glayout.addWidget(homescreen_label, 4, 0)
settings_glayout.addWidget(homescreen_change_button, 4, 1)
settings_glayout.addWidget(homescreen_clear_button, 4, 2)
settings_glayout.addWidget(homescreen_msg, 5, 1, 1, -1)
# Settings tab - Session Timeout
timeout_label = QLabel(_("Session Timeout"))
timeout_minutes = QLabel()
timeout_slider = QSlider(Qt.Horizontal)
timeout_slider.setRange(1, 60)
timeout_slider.setSingleStep(1)
timeout_slider.setTickInterval(5)
timeout_slider.setTickPosition(QSlider.TicksBelow)
timeout_slider.setTracking(True)
timeout_msg = QLabel(
_("Clear the session after the specified period "
"of inactivity. Once a session has timed out, "
"your PIN and passphrase (if enabled) must be "
"re-entered to use the device."))
timeout_msg.setWordWrap(True)
timeout_slider.setSliderPosition(config.get_session_timeout() // 60)
slider_moved()
timeout_slider.valueChanged.connect(slider_moved)
timeout_slider.sliderReleased.connect(slider_released)
settings_glayout.addWidget(timeout_label, 6, 0)
settings_glayout.addWidget(timeout_slider, 6, 1, 1, 3)
settings_glayout.addWidget(timeout_minutes, 6, 4)
settings_glayout.addWidget(timeout_msg, 7, 1, 1, -1)
settings_layout.addLayout(settings_glayout)
settings_layout.addStretch(1)
# Advanced tab
advanced_tab = QWidget()
advanced_layout = QVBoxLayout(advanced_tab)
advanced_glayout = QGridLayout()
# Advanced tab - clear PIN
clear_pin_button = QPushButton(_("Disable PIN"))
clear_pin_button.clicked.connect(clear_pin)
clear_pin_warning = QLabel(
_("If you disable your PIN, anyone with physical access to your "
"{} device can spend your bitcoins.").format(plugin.device))
clear_pin_warning.setWordWrap(True)
clear_pin_warning.setStyleSheet("color: red")
advanced_glayout.addWidget(clear_pin_button, 0, 2)
advanced_glayout.addWidget(clear_pin_warning, 1, 0, 1, 5)
# Advanced tab - toggle passphrase protection
passphrase_button = QPushButton()
passphrase_button.clicked.connect(toggle_passphrase)
passphrase_msg = WWLabel(PASSPHRASE_HELP)
passphrase_warning = WWLabel(PASSPHRASE_NOT_PIN)
passphrase_warning.setStyleSheet("color: red")
advanced_glayout.addWidget(passphrase_button, 3, 2)
advanced_glayout.addWidget(passphrase_msg, 4, 0, 1, 5)
advanced_glayout.addWidget(passphrase_warning, 5, 0, 1, 5)
# Advanced tab - wipe device
wipe_device_button = QPushButton(_("Wipe Device"))
wipe_device_button.clicked.connect(wipe_device)
wipe_device_msg = QLabel(
_("Wipe the device, removing all data from it. The firmware "
"is left unchanged."))
wipe_device_msg.setWordWrap(True)
wipe_device_warning = QLabel(
_("Only wipe a device if you have the recovery seed written down "
"and the device wallet(s) are empty, otherwise the bitcoins "
"will be lost forever."))
wipe_device_warning.setWordWrap(True)
wipe_device_warning.setStyleSheet("color: red")
advanced_glayout.addWidget(wipe_device_button, 6, 2)
advanced_glayout.addWidget(wipe_device_msg, 7, 0, 1, 5)
advanced_glayout.addWidget(wipe_device_warning, 8, 0, 1, 5)
advanced_layout.addLayout(advanced_glayout)
advanced_layout.addStretch(1)
tabs = QTabWidget(self)
tabs.addTab(info_tab, _("Information"))
tabs.addTab(settings_tab, _("Settings"))
tabs.addTab(advanced_tab, _("Advanced"))
dialog_vbox = QVBoxLayout(self)
dialog_vbox.addWidget(tabs)
dialog_vbox.addLayout(Buttons(CloseButton(self)))
# Update information
invoke_client(None)