class SwipeFrame(Frame):
def __init__(self, parent):
super().__init__(parent)
self.columnconfigure(0, weight=1)
self.rowconfigure(4, weight=1)
Separator(self, orient=HORIZONTAL).grid(row=0,
columnspan=4,
sticky=E + W,
pady=5)
self.swipe_field = EntryWithHintText(
self,
hint="Type PIN, then swipe card. If there's no PIN, just swipe.")
self.swipe_field.grid(row=1, column=0, sticky=E + W)
self.swipe_field.bind('<Return>', self.card_swiped)
Separator(self, orient=HORIZONTAL).grid(row=2,
columnspan=4,
sticky=E + W,
pady=5)
Label(self, text='Swipe Output', anchor=CENTER).grid(row=3,
columnspan=4,
sticky=E + W)
self.output_text = ScrolledText(self,
bg='#F0F0F0',
borderwidth=2,
relief=GROOVE)
self.output_text.config(state=DISABLED)
self.output_text.grid(row=4, columnspan=4, sticky=N + E + W + S)
def card_swiped(self, event=None):
field_data = self.swipe_field.get()
# card not swiped
if "%B" not in field_data:
return
else:
pin, data = field_data.split("%B")
if data.count('?') != 2 or data.count('^') != 2:
self.swipe_field.delete(len(pin), END)
else:
sec1, sec2, sec3 = data.split('^')
if len(sec1) != 19:
t1, t2, t3 = sec3.split('?')
if len(t1) == 8 or len(t1) == 10:
card_no = sec1[0:16]
else:
card_no = sec1[0] + sec3[14:16] + sec1[6:15] + sec3[16:20]
else:
card_no = sec1[0:20]
if self.luhn_checksum(card_no) == 0:
ck = ''
else:
ck = ' CHECKSUM FAILED - Check card numbers from this brand.'
output_line = '{},{}{}\n'.format(
''.join(card_no[i:i + 4] for i in range(0, len(card_no), 4)),
pin, ck)
self.output_text.config(state=NORMAL)
self.output_text.insert('end-1c', output_line)
self.output_text.see(END)
self.output_text.config(state=DISABLED)
self.swipe_field.delete(0, END)
@staticmethod
def luhn_checksum(card_number):
def digits_of(n):
return [int(d) for d in str(n)]
digits = digits_of(card_number)
odd_digits = digits[-1::-2]
even_digits = digits[-2::-2]
checksum = 0
checksum += sum(odd_digits)
for d in even_digits:
checksum += sum(digits_of(d * 2))
return checksum % 10
class SwipeFrame(Frame):
def __init__(self, parent):
super().__init__(parent)
self.columnconfigure(0, weight=1)
self.rowconfigure(4, weight=1)
Separator(self, orient=HORIZONTAL).grid(row=0,
columnspan=4,
sticky=E + W,
pady=5)
self.swipe_field = EntryWithHintText(
self,
hint="Type PIN, then swipe card. If there's no PIN, just swipe.")
self.swipe_field.grid(row=1, column=0, sticky=E + W)
self.swipe_field.bind('<Return>', self.card_swiped)
Separator(self, orient=HORIZONTAL).grid(row=2,
columnspan=4,
sticky=E + W,
pady=5)
Label(self, text='Swipe Output', anchor=CENTER).grid(row=3,
columnspan=4,
sticky=E + W)
self.output_text = ScrolledText(self,
bg='#F0F0F0',
borderwidth=2,
relief=GROOVE)
self.output_text.config(state=DISABLED)
self.output_text.grid(row=4, columnspan=4, sticky=N + E + W + S)
def card_swiped(self, event=None):
field_data = self.swipe_field.get()
# card not swiped
if "%B" not in field_data:
return
else:
pin, data = field_data.split("%B")
if data.count('?') != 2 or data.count('^') != 2:
self.swipe_field.delete(len(pin), END)
else:
sec1, sec2, sec3 = data.split('^')
if len(sec1) != 19:
t1, t2, t3 = sec3.split('?')
if len(t1) == 8:
card_no = sec1[0:16]
else:
card_no = sec1[0] + sec3[14:16] + sec1[6:15] + sec3[16:20]
else:
card_no = sec1[0:20]
output_line = '{},{}\n'.format(
''.join(card_no[i:i + 4] for i in range(0, len(card_no), 4)),
pin)
self.output_text.config(state=NORMAL)
self.output_text.insert('end-1c', output_line)
self.output_text.see(END)
self.output_text.config(state=DISABLED)
self.swipe_field.delete(0, END)
class BarcodeFrame(Frame):
def __init__(self, parent):
super().__init__(parent)
self.columnconfigure(1, weight=1)
self.rowconfigure(4, weight=1)
Separator(self, orient=HORIZONTAL).grid(row=0, columnspan=4, sticky=E+W, pady=5)
self.pin_field = EntryWithHintText(self, hint='Type PIN, hit enter', width=20)
self.pin_field.grid(row=1, column=0, sticky=W, padx=5)
self.pin_field.bind('<Return>', self.pin_entered)
self.code_field = EntryWithHintText(self, hint='Scan Barcode')
self.code_field.grid(row=1, column=1, sticky=E+W)
self.code_field.bind('<Return>', self.code_entered)
note = " Note: If you set up your barcode scanner to prepend '%B' to scans, hitting enter after the PIN " \
"is not required."
Label(self, text=note).grid(row=2, columnspan=2, sticky=S+W, pady=5)
Separator(self, orient=HORIZONTAL).grid(row=3, columnspan=4, sticky=E+W, pady=5)
Label(self, text='Scan Output', anchor=CENTER).grid(row=4, columnspan=4, sticky=E+W)
self.output_text = ScrolledText(self, bg='#F0F0F0', borderwidth=2, relief=GROOVE)
self.output_text.config(state=DISABLED)
self.output_text.grid(row=5, columnspan=4, sticky=N+E+W+S)
def pin_entered(self, event=None):
if '%B' in self.pin_field.get():
pin, code = self.pin_field.get().split('%B')
self.detect(pin, code)
else:
self.code_field.focus()
def code_entered(self, event=None):
self.detect(self.pin_field.get(), self.code_field.get())
def detect(self, pin, code):
code = code.replace('%B', '')
# kohl's. others?
if len(code) == 30:
code = code[-19:]
# cabela's
elif re.search("^\d{10}[a-zA-Z]{6}$", code):
pin = code[-6:]
code = code[:9]
elif len(code) != 19 and len(code) != 16:
self.code_field.delete(0, END)
return
output_line = '{},{}\n'.format(''.join(code[i:i+4] for i in range(0,len(code), 4)), pin)
self.output_text.config(state=NORMAL)
self.output_text.insert('end-1c', output_line)
self.output_text.see(END)
self.output_text.config(state=DISABLED)
self.code_field.delete(0, END)
self.pin_field.delete(0, END)
self.pin_field.focus()