mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-18 05:28:40 +00:00
111 lines
3.5 KiB
Python
111 lines
3.5 KiB
Python
import sys
|
|
import math
|
|
import operator
|
|
from PyQt4.QtGui import (QPushButton, QLineEdit, QSizePolicy, QRegExpValidator, QLabel,
|
|
QApplication, QWidget, QGridLayout, QVBoxLayout, QHBoxLayout)
|
|
from PyQt4.QtCore import QObject, SIGNAL, QRegExp, Qt
|
|
|
|
class PinButton(QPushButton):
|
|
def __init__(self, password, encoded_value):
|
|
super(PinButton, self).__init__('?')
|
|
self.password = password
|
|
self.encoded_value = encoded_value
|
|
|
|
QObject.connect(self, SIGNAL('clicked()'), self._pressed)
|
|
|
|
def _pressed(self):
|
|
self.password.setText(self.password.text() + str(self.encoded_value))
|
|
self.password.setFocus()
|
|
|
|
class PinMatrixWidget(QWidget):
|
|
'''
|
|
Displays widget with nine blank buttons and password box.
|
|
Encodes button clicks into sequence of numbers for passing
|
|
into PinAck messages of Trezor.
|
|
|
|
show_strength=True may be useful for entering new PIN
|
|
'''
|
|
def __init__(self, show_strength=True, parent=None):
|
|
super(PinMatrixWidget, self).__init__(parent)
|
|
|
|
self.password = QLineEdit()
|
|
self.password.setValidator(QRegExpValidator(QRegExp('[1-9]+'), None))
|
|
self.password.setEchoMode(QLineEdit.Password)
|
|
QObject.connect(self.password, SIGNAL('textChanged(QString)'), self._password_changed)
|
|
|
|
self.strength = QLabel()
|
|
self.strength.setMinimumWidth(75)
|
|
self.strength.setAlignment(Qt.AlignCenter)
|
|
self._set_strength(0)
|
|
|
|
grid = QGridLayout()
|
|
grid.setSpacing(0)
|
|
for y in range(3)[::-1]:
|
|
for x in range(3):
|
|
button = PinButton(self.password, x + y * 3 + 1)
|
|
button.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
|
|
button.setFocusPolicy(Qt.NoFocus)
|
|
grid.addWidget(button, 3 - y, x)
|
|
|
|
hbox = QHBoxLayout()
|
|
hbox.addWidget(self.password)
|
|
if show_strength:
|
|
hbox.addWidget(self.strength)
|
|
|
|
vbox = QVBoxLayout()
|
|
vbox.addLayout(grid)
|
|
vbox.addLayout(hbox)
|
|
self.setLayout(vbox)
|
|
|
|
def _set_strength(self, strength):
|
|
if strength < 3000:
|
|
self.strength.setText('weak')
|
|
self.strength.setStyleSheet("QLabel { color : #d00; }")
|
|
elif strength < 60000:
|
|
self.strength.setText('fine')
|
|
self.strength.setStyleSheet("QLabel { color : #db0; }")
|
|
elif strength < 360000:
|
|
self.strength.setText('strong')
|
|
self.strength.setStyleSheet("QLabel { color : #0a0; }")
|
|
else:
|
|
self.strength.setText('ULTIMATE')
|
|
self.strength.setStyleSheet("QLabel { color : #000; font-weight: bold;}")
|
|
|
|
def _password_changed(self, password):
|
|
self._set_strength(self.get_strength())
|
|
|
|
def get_strength(self):
|
|
digits = len(set(str(self.password.text())))
|
|
strength = math.factorial(9) / math.factorial(9 - digits)
|
|
return strength
|
|
|
|
def get_value(self):
|
|
return self.password.text()
|
|
|
|
if __name__ == '__main__':
|
|
'''
|
|
Demo application showing PinMatrix widget in action
|
|
'''
|
|
a = QApplication(sys.argv)
|
|
|
|
matrix = PinMatrixWidget()
|
|
|
|
def clicked():
|
|
print "PinMatrix value is", matrix.get_value()
|
|
print "Possible button combinations:", matrix.get_strength()
|
|
sys.exit()
|
|
|
|
ok = QPushButton('OK')
|
|
QObject.connect(ok, SIGNAL('clicked()'), clicked)
|
|
|
|
vbox = QVBoxLayout()
|
|
vbox.addWidget(matrix)
|
|
vbox.addWidget(ok)
|
|
|
|
w = QWidget()
|
|
w.setLayout(vbox)
|
|
w.move(100, 100)
|
|
w.show()
|
|
|
|
a.exec_()
|