359 lines
14 KiB
Python
359 lines
14 KiB
Python
import os
|
|
import hashlib
|
|
import logging
|
|
import json
|
|
import copy
|
|
from binascii import hexlify, unhexlify
|
|
|
|
import websocket
|
|
|
|
from PyQt5.Qt import QDialog, QLineEdit, QTextEdit, QVBoxLayout, QLabel
|
|
import PyQt5.QtCore as QtCore
|
|
from PyQt5.QtWidgets import *
|
|
|
|
from btchip.btchip import *
|
|
|
|
from electrum_zclassic.i18n import _
|
|
from electrum_zclassic_gui.qt.util import *
|
|
from electrum_zclassic.util import print_msg
|
|
from electrum_zclassic import constants, bitcoin
|
|
from electrum_zclassic_gui.qt.qrcodewidget import QRCodeWidget
|
|
|
|
|
|
DEBUG = False
|
|
|
|
helpTxt = [_("Your Ledger Wallet wants to tell you a one-time PIN code.<br><br>" \
|
|
"For best security you should unplug your device, open a text editor on another computer, " \
|
|
"put your cursor into it, and plug your device into that computer. " \
|
|
"It will output a summary of the transaction being signed and a one-time PIN.<br><br>" \
|
|
"Verify the transaction summary and type the PIN code here.<br><br>" \
|
|
"Before pressing enter, plug the device back into this computer.<br>" ),
|
|
_("Verify the address below.<br>Type the character from your security card corresponding to the <u><b>BOLD</b></u> character."),
|
|
_("Waiting for authentication on your mobile phone"),
|
|
_("Transaction accepted by mobile phone. Waiting for confirmation."),
|
|
_("Click Pair button to begin pairing a mobile phone."),
|
|
_("Scan this QR code with your Ledger Wallet phone app to pair it with this Ledger device.<br>"
|
|
"To complete pairing you will need your security card to answer a challenge." )
|
|
]
|
|
|
|
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(650)
|
|
self.setWindowTitle(_("Ledger Wallet Authentication"))
|
|
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()
|
|
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 = QLineEdit()
|
|
self.pintxt.setEchoMode(2)
|
|
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; font-family:monospace; }")
|
|
self.addrtext.setReadOnly(True)
|
|
self.addrtext.setMaximumHeight(130)
|
|
card.addWidget(self.addrtext)
|
|
|
|
def pin_changed(s):
|
|
if len(s) < len(self.idxs):
|
|
i = self.idxs[len(s)]
|
|
addr = self.txdata['address']
|
|
if not constants.net.TESTNET:
|
|
text = addr[:i] + '<u><b>' + addr[i:i+1] + '</u></b>' + addr[i+1:]
|
|
else:
|
|
# pin needs to be created from mainnet address
|
|
addr_mainnet = bitcoin.script_to_address(bitcoin.address_to_script(addr), net=constants.BitcoinMainnet)
|
|
addr_mainnet = addr_mainnet[:i] + '<u><b>' + addr_mainnet[i:i+1] + '</u></b>' + addr_mainnet[i+1:]
|
|
text = str(addr) + '\n' + str(addr_mainnet)
|
|
self.addrtext.setHtml(str(text))
|
|
else:
|
|
self.addrtext.setHtml(_("Press Enter"))
|
|
|
|
pin_changed('')
|
|
cardpin = QHBoxLayout()
|
|
cardpin.addWidget(QLabel(_("Enter PIN:")))
|
|
self.cardtxt = QLineEdit()
|
|
self.cardtxt.setEchoMode(2)
|
|
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(400)
|
|
|
|
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:
|
|
debug_msg('Device getMode Failed')
|
|
return 0x11
|
|
|
|
def closeEvent(self, evnt):
|
|
debug_msg("CLOSE - Stop WS")
|
|
if self.ws:
|
|
self.ws.stop()
|
|
if self.pairbox.isVisible():
|
|
evnt.ignore()
|
|
self.update_dlg()
|
|
|
|
class LedgerWebSocket(QThread):
|
|
pairing_done = pyqtSignal(object)
|
|
req_updated = pyqtSignal(str)
|
|
|
|
def __init__(self, dlg, pairID, txdata=None):
|
|
QThread.__init__(self)
|
|
self.stopping = False
|
|
self.pairID = pairID
|
|
self.txreq = '{"type":"request","second_factor_data":"' + hexlify(txdata['secureScreenData']).decode('utf-8') + '"}' if txdata else None
|
|
self.dlg = dlg
|
|
self.dongle = self.dlg.dongle
|
|
self.data = None
|
|
|
|
#websocket.enableTrace(True)
|
|
logging.basicConfig(level=logging.INFO)
|
|
self.ws = websocket.WebSocketApp('wss://ws.ledgerwallet.com/2fa/channels',
|
|
on_message = self.on_message, on_error = self.on_error,
|
|
on_close = self.on_close, on_open = self.on_open)
|
|
|
|
def run(self):
|
|
while not self.stopping:
|
|
self.ws.run_forever()
|
|
def stop(self):
|
|
debug_msg("WS: Stopping")
|
|
self.stopping = True
|
|
self.ws.close()
|
|
|
|
def on_message(self, ws, msg):
|
|
data = json.loads(msg)
|
|
if data['type'] == 'identify':
|
|
debug_msg('Identify')
|
|
apdu = [0xe0, 0x12, 0x01, 0x00, 0x41] # init pairing
|
|
apdu.extend(unhexlify(data['public_key']))
|
|
try:
|
|
challenge = self.dongle.exchange( bytearray(apdu) )
|
|
ws.send( '{"type":"challenge","data":"%s" }' % hexlify(challenge).decode('utf-8') )
|
|
self.data = data
|
|
except BTChipException as e:
|
|
debug_msg('Identify Failed')
|
|
|
|
if data['type'] == 'challenge':
|
|
debug_msg('Challenge')
|
|
apdu = [0xe0, 0x12, 0x02, 0x00, 0x10] # confirm pairing
|
|
apdu.extend(unhexlify(data['data']))
|
|
try:
|
|
self.dongle.exchange( bytearray(apdu) )
|
|
debug_msg('Pairing Successful')
|
|
ws.send( '{"type":"pairing","is_successful":"true"}' )
|
|
self.data['pairid'] = self.pairID
|
|
self.pairing_done.emit(self.data)
|
|
except BTChipException as e:
|
|
debug_msg('Pairing Failed')
|
|
ws.send( '{"type":"pairing","is_successful":"false"}' )
|
|
self.pairing_done.emit(None)
|
|
ws.send( '{"type":"disconnect"}' )
|
|
self.stopping = True
|
|
ws.close()
|
|
|
|
if data['type'] == 'accept':
|
|
debug_msg('Accepted')
|
|
self.req_updated.emit('accepted')
|
|
if data['type'] == 'response':
|
|
debug_msg('Responded', data)
|
|
self.req_updated.emit(str(data['pin']) if data['is_accepted'] else '')
|
|
self.txreq = None
|
|
self.stopping = True
|
|
ws.close()
|
|
|
|
if data['type'] == 'repeat':
|
|
debug_msg('Repeat')
|
|
if self.txreq:
|
|
ws.send( self.txreq )
|
|
debug_msg("Req Sent", self.txreq)
|
|
if data['type'] == 'connect':
|
|
debug_msg('Connected')
|
|
if self.txreq:
|
|
ws.send( self.txreq )
|
|
debug_msg("Req Sent", self.txreq)
|
|
if data['type'] == 'disconnect':
|
|
debug_msg('Disconnected')
|
|
ws.close()
|
|
|
|
def on_error(self, ws, error):
|
|
message = getattr(error, 'strerror', '')
|
|
if not message:
|
|
message = getattr(error, 'message', '')
|
|
debug_msg("WS: %s" % message)
|
|
|
|
def on_close(self, ws):
|
|
debug_msg("WS: ### socket closed ###")
|
|
|
|
def on_open(self, ws):
|
|
debug_msg("WS: ### socket open ###")
|
|
debug_msg("Joining with pairing ID", self.pairID)
|
|
ws.send( '{"type":"join","room":"%s"}' % self.pairID )
|
|
ws.send( '{"type":"repeat"}' )
|
|
if self.txreq:
|
|
ws.send( self.txreq )
|
|
debug_msg("Req Sent", self.txreq)
|
|
|
|
|
|
def debug_msg(*args):
|
|
if DEBUG:
|
|
print_msg(*args)
|