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Code Issues Releases Wiki Activity

Added strength indicator (weak / fine / strong / ultimate)

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slush0 2013-10-08 22:13:03 +02:00
parent 42419a129a
commit 4e5c3740aa
1 changed files with 42 additions and 4 deletions
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46
trezorlib/pinmatrix.py
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@ -1,6 +1,8 @@
import sys
from PyQt4.Qt import QApplication, QWidget, QGridLayout, QVBoxLayout
from PyQt4.QtGui import QPushButton, QLineEdit, QSizePolicy, QRegExpValidator
import math
import operator
from PyQt4.Qt import QApplication, QWidget, QGridLayout, QVBoxLayout, QHBoxLayout
from PyQt4.QtGui import QPushButton, QLineEdit, QSizePolicy, QRegExpValidator, QLabel
from PyQt4.QtCore import QObject, SIGNAL, QRegExp, Qt
class PinButton(QPushButton):
@ -20,13 +22,21 @@ 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, parent=None):
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)
@ -36,11 +46,38 @@ class PinMatrixWidget(QWidget):
button.setFocusPolicy(Qt.NoFocus)
grid.addWidget(button, x / 3, x % 3)
hbox = QHBoxLayout()
hbox.addWidget(self.password)
if show_strength:
hbox.addWidget(self.strength)
vbox = QVBoxLayout()
vbox.addLayout(grid)
vbox.addWidget(self.password)
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()
@ -54,6 +91,7 @@ if __name__ == '__main__':
def clicked():
print "PinMatrix value is", matrix.get_value()
print "Possible button combinations:", matrix.get_strength()
sys.exit()
ok = QPushButton('OK')