class LedgerAuthDialog(QDialog):
def __init__(self, handler, keystore: Ledger_KeyStore, data: Dict[str, Any]):
'''Ask user for 2nd factor authentication. Support text and security card methods.
Use last method from settings, but support downgrade.
'''
QDialog.__init__(self, handler.top_level_window())
self.handler = handler
self.txdata = data
self.idxs = self.txdata['keycardData'] if self.txdata['confirmationType'] > 1 else ''
self.setMinimumWidth(600)
self.setWindowTitle(_("Ledger Wallet Authentication"))
self.cfg = copy.deepcopy(keystore.cfg)
self.dongle = keystore.get_client().dongle
self.pin = ''
self.devmode = self.getDevice2FAMode()
if self.devmode == 0x11 or self.txdata['confirmationType'] == 1:
self.cfg['mode'] = 0
vbox = QVBoxLayout()
self.setLayout(vbox)
def on_change_mode(idx):
self.cfg['mode'] = 0 if self.devmode == 0x11 else idx if idx > 0 else 1
if self.cfg['mode'] > 0:
keystore.cfg = self.cfg
self.update_dlg()
def return_pin():
self.pin = (self.pintxt.text() if self.txdata['confirmationType'] == 1
else self.cardtxt.text())
self.pin.setText('')
self.cardtxt.setText('')
if self.cfg['mode'] == 1:
self.pin = ''.join(chr(int(str(i),16)) for i in self.pin)
self.accept()
self.modebox = QWidget()
modelayout = QHBoxLayout()
self.modebox.setLayout(modelayout)
modelayout.addWidget(QLabel(_("Method:")))
self.modes = QComboBox()
modelayout.addWidget(self.modes, 2)
modelayout.addStretch(1)
self.modebox.setMaximumHeight(50)
vbox.addWidget(self.modebox)
self.populate_modes()
self.modes.currentIndexChanged.connect(on_change_mode)
self.helpmsg = QTextEdit()
self.helpmsg.setStyleSheet("QTextEdit { background-color: lightgray; }")
self.helpmsg.setReadOnly(True)
vbox.addWidget(self.helpmsg)
self.pinbox = QWidget()
pinlayout = QHBoxLayout()
self.pinbox.setLayout(pinlayout)
self.pintxt = PasswordLineEdit()
self.pintxt.setMaxLength(4)
self.pintxt.returnPressed.connect(return_pin)
pinlayout.addWidget(QLabel(_("Enter PIN:")))
pinlayout.addWidget(self.pintxt)
pinlayout.addWidget(QLabel(_("NOT DEVICE PIN - see above")))
pinlayout.addStretch(1)
self.pinbox.setVisible(self.cfg['mode'] == 0)
vbox.addWidget(self.pinbox)
self.cardbox = QWidget()
card = QVBoxLayout()
self.cardbox.setLayout(card)
self.addrtext = QTextEdit()
self.addrtext.setStyleSheet("QTextEdit { color:blue; background-color:lightgray; "
"padding:15px 10px; border:none; font-size:20pt; }")
self.addrtext.setReadOnly(True)
self.addrtext.setMaximumHeight(120)
card.addWidget(self.addrtext)
def pin_changed(s):
if len(s) < len(self.idxs):
i = self.idxs[len(s)]
addr = self.txdata['address']
addr = addr[:i] + '<u><b>' + addr[i:i+1] + '</u></b>' + addr[i+1:]
self.addrtext.setHtml(str(addr))
else:
self.addrtext.setHtml(_("Press Enter"))
pin_changed('')
cardpin = QHBoxLayout()
cardpin.addWidget(QLabel(_("Enter PIN:")))
self.cardtxt = PasswordLineEdit()
self.cardtxt.setMaxLength(len(self.idxs))
self.cardtxt.textChanged.connect(pin_changed)
self.cardtxt.returnPressed.connect(return_pin)
cardpin.addWidget(self.cardtxt)
cardpin.addWidget(QLabel(_("NOT DEVICE PIN - see above")))
cardpin.addStretch(1)
card.addLayout(cardpin)
self.cardbox.setVisible(self.cfg['mode'] == 1)
vbox.addWidget(self.cardbox)
self.update_dlg()
def populate_modes(self):
self.modes.blockSignals(True)
self.modes.clear()
self.modes.addItem(_("Summary Text PIN (requires dongle replugging)")
if self.txdata['confirmationType'] == 1 else
_("Summary Text PIN is Disabled"))
if self.txdata['confirmationType'] > 1:
self.modes.addItem(_("Security Card Challenge"))
self.modes.blockSignals(False)
def update_dlg(self):
self.modes.setCurrentIndex(self.cfg['mode'])
self.modebox.setVisible(True)
self.helpmsg.setText(helpTxt[self.cfg['mode']])
self.helpmsg.setMinimumHeight(180 if self.txdata['confirmationType'] == 1 else 100)
self.helpmsg.setVisible(True)
self.pinbox.setVisible(self.cfg['mode'] == 0)
self.cardbox.setVisible(self.cfg['mode'] == 1)
self.pintxt.setFocus(True) if self.cfg['mode'] == 0 else self.cardtxt.setFocus(True)
self.setMaximumHeight(200)
def getDevice2FAMode(self):
apdu = [0xe0, 0x24, 0x01, 0x00, 0x00, 0x01] # get 2fa mode
try:
mode = self.dongle.exchange( bytearray(apdu) )
return mode
except BTChipException as e:
logger.debug('Device getMode Failed')
return 0x11
class LedgerAuthDialog(QDialog):
def __init__(self, handler, data):
'''Ask user for 2nd factor authentication. Support text, security card and paired mobile
methods. Use last method from settings, but support new pairing and downgrade.
'''
QDialog.__init__(self, handler.top_level_window())
self.handler = handler
self.txdata = data
self.idxs = self.txdata[
'keycardData'] if self.txdata['confirmationType'] > 1 else ''
self.setMinimumWidth(600)
self.setWindowTitle(_("Ledger Wallet Authentication"))
self.setWindowIcon(read_QIcon("electrum-sv.png"))
self.cfg = copy.deepcopy(self.handler.win.wallet.get_keystore().cfg)
self.dongle = self.handler.win.wallet.get_keystore().get_client(
).dongle
self.ws = None
self.pin = ''
self.devmode = self.getDevice2FAMode()
if self.devmode == 0x11 or self.txdata['confirmationType'] == 1:
self.cfg['mode'] = 0
vbox = QVBoxLayout()
self.setLayout(vbox)
def on_change_mode(idx):
if idx < 2 and self.ws:
self.ws.stop()
self.ws = None
self.cfg[
'mode'] = 0 if self.devmode == 0x11 else idx if idx > 0 else 1
if self.cfg['mode'] > 1 and self.cfg['pair'] and not self.ws:
self.req_validation()
if self.cfg['mode'] > 0:
self.handler.win.wallet.get_keystore().cfg = self.cfg
self.handler.win.wallet.save_keystore()
self.update_dlg()
def add_pairing():
self.do_pairing()
def return_pin():
self.pin = (self.pintxt.text() if self.txdata['confirmationType']
== 1 else self.cardtxt.text())
self.pin.setText('')
self.cardtxt.setText('')
if self.cfg['mode'] == 1:
self.pin = ''.join(chr(int(str(i), 16)) for i in self.pin)
self.accept()
self.modebox = QWidget()
modelayout = QHBoxLayout()
self.modebox.setLayout(modelayout)
modelayout.addWidget(QLabel(_("Method:")))
self.modes = QComboBox()
modelayout.addWidget(self.modes, 2)
self.addPair = QPushButton(_("Pair"))
self.addPair.setMaximumWidth(60)
modelayout.addWidget(self.addPair)
modelayout.addStretch(1)
self.modebox.setMaximumHeight(50)
vbox.addWidget(self.modebox)
self.populate_modes()
self.modes.currentIndexChanged.connect(on_change_mode)
self.addPair.clicked.connect(add_pairing)
self.helpmsg = QTextEdit()
self.helpmsg.setStyleSheet(
"QTextEdit { background-color: lightgray; }")
self.helpmsg.setReadOnly(True)
vbox.addWidget(self.helpmsg)
self.pinbox = QWidget()
pinlayout = QHBoxLayout()
self.pinbox.setLayout(pinlayout)
self.pintxt = PasswordLineEdit()
self.pintxt.setMaxLength(4)
self.pintxt.returnPressed.connect(return_pin)
pinlayout.addWidget(QLabel(_("Enter PIN:")))
pinlayout.addWidget(self.pintxt)
pinlayout.addWidget(QLabel(_("NOT DEVICE PIN - see above")))
pinlayout.addStretch(1)
self.pinbox.setVisible(self.cfg['mode'] == 0)
vbox.addWidget(self.pinbox)
self.cardbox = QWidget()
card = QVBoxLayout()
self.cardbox.setLayout(card)
self.addrtext = QTextEdit()
self.addrtext.setStyleSheet(
"QTextEdit { color:blue; background-color:lightgray; "
"padding:15px 10px; border:none; font-size:20pt; }")
self.addrtext.setReadOnly(True)
self.addrtext.setMaximumHeight(120)
card.addWidget(self.addrtext)
def pin_changed(s):
if len(s) < len(self.idxs):
i = self.idxs[len(s)]
addr = self.txdata['address']
addr = addr[:i] + '<u><b>' + addr[i:i +
1] + '</u></b>' + addr[i +
1:]
self.addrtext.setHtml(str(addr))
else:
self.addrtext.setHtml(_("Press Enter"))
pin_changed('')
cardpin = QHBoxLayout()
cardpin.addWidget(QLabel(_("Enter PIN:")))
self.cardtxt = PasswordLineEdit()
self.cardtxt.setMaxLength(len(self.idxs))
self.cardtxt.textChanged.connect(pin_changed)
self.cardtxt.returnPressed.connect(return_pin)
cardpin.addWidget(self.cardtxt)
cardpin.addWidget(QLabel(_("NOT DEVICE PIN - see above")))
cardpin.addStretch(1)
card.addLayout(cardpin)
self.cardbox.setVisible(self.cfg['mode'] == 1)
vbox.addWidget(self.cardbox)
self.pairbox = QWidget()
pairlayout = QVBoxLayout()
self.pairbox.setLayout(pairlayout)
pairhelp = QTextEdit(helpTxt[5])
pairhelp.setStyleSheet("QTextEdit { background-color: lightgray; }")
pairhelp.setReadOnly(True)
pairlayout.addWidget(pairhelp, 1)
self.pairqr = QRCodeWidget()
pairlayout.addWidget(self.pairqr, 4)
self.pairbox.setVisible(False)
vbox.addWidget(self.pairbox)
self.update_dlg()
if self.cfg['mode'] > 1 and not self.ws:
self.req_validation()
def populate_modes(self):
self.modes.blockSignals(True)
self.modes.clear()
self.modes.addItem(
_("Summary Text PIN (requires dongle replugging)"
) if self.txdata['confirmationType'] ==
1 else _("Summary Text PIN is Disabled"))
if self.txdata['confirmationType'] > 1:
self.modes.addItem(_("Security Card Challenge"))
if not self.cfg['pair']:
self.modes.addItem(_("Mobile - Not paired"))
else:
self.modes.addItem(
_("Mobile - {}").format(self.cfg['pair'][1]))
self.modes.blockSignals(False)
def update_dlg(self):
self.modes.setCurrentIndex(self.cfg['mode'])
self.modebox.setVisible(True)
self.addPair.setText(
_("Pair") if not self.cfg['pair'] else _("Re-Pair"))
self.addPair.setVisible(self.txdata['confirmationType'] > 2)
self.helpmsg.setText(
helpTxt[self.cfg['mode'] if self.cfg['mode'] < 2 else 2 if self.
cfg['pair'] else 4])
self.helpmsg.setMinimumHeight(180 if self.txdata['confirmationType'] ==
1 else 100)
self.pairbox.setVisible(False)
self.helpmsg.setVisible(True)
self.pinbox.setVisible(self.cfg['mode'] == 0)
self.cardbox.setVisible(self.cfg['mode'] == 1)
self.pintxt.setFocus(
True) if self.cfg['mode'] == 0 else self.cardtxt.setFocus(True)
self.setMaximumHeight(200)
def do_pairing(self):
rng = os.urandom(16)
pairID = (hexlify(rng) +
hexlify(hashlib.sha256(rng).digest()[0:1])).decode('utf-8')
self.pairqr.setData(pairID)
self.modebox.setVisible(False)
self.helpmsg.setVisible(False)
self.pinbox.setVisible(False)
self.cardbox.setVisible(False)
self.pairbox.setVisible(True)
self.pairqr.setMinimumSize(300, 300)
if self.ws:
self.ws.stop()
self.ws = LedgerWebSocket(self, pairID)
self.ws.pairing_done.connect(self.pairing_done)
self.ws.start()
def pairing_done(self, data):
if data is not None:
self.cfg['pair'] = [data['pairid'], data['name'], data['platform']]
self.cfg['mode'] = 2
self.handler.win.wallet.get_keystore().cfg = self.cfg
self.handler.win.wallet.save_keystore()
self.pin = 'paired'
self.accept()
def req_validation(self):
if self.cfg['pair'] and 'secureScreenData' in self.txdata:
if self.ws:
self.ws.stop()
self.ws = LedgerWebSocket(self, self.cfg['pair'][0], self.txdata)
self.ws.req_updated.connect(self.req_updated)
self.ws.start()
def req_updated(self, pin):
if pin == 'accepted':
self.helpmsg.setText(helpTxt[3])
else:
self.pin = str(pin)
self.accept()
def getDevice2FAMode(self):
apdu = [0xe0, 0x24, 0x01, 0x00, 0x00, 0x01] # get 2fa mode
try:
mode = self.dongle.exchange(bytearray(apdu))
return mode
except BTChipException as e:
logger.debug('Device getMode Failed')
return 0x11
def closeEvent(self, evnt):
logger.debug("CLOSE - Stop WS")
if self.ws:
self.ws.stop()
if self.pairbox.isVisible():
evnt.ignore()
self.update_dlg()