def calc_check_digit(number):
"""Calculate the check digit for the number. The number should not
already have a check digit."""
# both the 18-digit decimal format and the 14-digit hex format
# containing only decimal digits should use the decimal Luhn check
from stdnum import luhn
if isdigits(number):
return luhn.calc_check_digit(number)
else:
return luhn.calc_check_digit(number, alphabet=_hex_alphabet)
def calc_check_digit(number):
"""Calculate the check digit for the number. The number should not
already have a check digit."""
# both the 18-digit decimal format and the 14-digit hex format
# containing only decimal digits should use the decimal Luhn check
from stdnum import luhn
if number.isdigit():
return luhn.calc_check_digit(number)
else:
return luhn.calc_check_digit(number, alphabet=_hex_alphabet)
def format(number, separator='-', add_check_digit=False):
"""Reformat the passed number to the standard format."""
number = compact(number)
if len(number) == 14 and add_check_digit:
number += luhn.calc_check_digit(number)
number = (number[:2], number[2:8], number[8:14], number[14:])
return separator.join(x for x in number if x)
def format(number, separator='-', add_check_digit=False):
"""Reformat the number to the standard presentation format."""
number = compact(number)
if len(number) == 14 and add_check_digit:
number += luhn.calc_check_digit(number)
number = (number[:2], number[2:8], number[8:14], number[14:])
return separator.join(x for x in number if x)
def luhn_sign(cls, val):
result = None
if val.isdigit():
result = val + luhn.calc_check_digit(val)
return result
def do_tac():
global IMEI
check_tacfile()
tac_list=read_tacfile('')
TAC=tac_list[0]
SN = f'{randrange(999999):06}'
IMEI0 = TAC + SN
CD = luhn.calc_check_digit(IMEI0)
IMEI = IMEI0 + CD
print(IMEI,'-',tac_list[1],tac_list[2])
def do_targ(STRING):
global IMEI
print("guessing", STRING)
if STRING.isdigit():
print("we have a number, len:", len(STRING))
if len(STRING) > 15:
print("IMEI too long")
else:
if len(STRING) == 15:
print("we've got full IMEI, checking validity")
IMEI = STRING
IMEI0 = STRING[:14]
CD = STRING[14:]
if luhn.calc_check_digit(IMEI0) == CD:
print("IMEI is valid")
else:
print("IMEI is invalid, should be ", IMEI0 + luhn.calc_check_digit(IMEI0))
else:
print("we've got partial IMEI, calculating the rest")
NEED=(14 - len(STRING))
if NEED == 0:
IMEI0 = STRING
else:
RANGE=((10**(NEED)-1))
SN = randrange(RANGE)
SN = str(SN).zfill(NEED)
IMEI0 = STRING + SN
CD = luhn.calc_check_digit(IMEI0)
IMEI = IMEI0 + CD
print("IMEI: ", IMEI)
else:
print("we've got string, searching in TAC list")
check_tacfile()
tac_list=read_tacfile(STRING)
# FIXME, repeats -t
TAC=tac_list[0]
SN = f'{randrange(999999):06}'
IMEI0 = TAC + SN
CD = luhn.calc_check_digit(IMEI0)
IMEI = IMEI0 + CD
print(IMEI,'-',tac_list[1],tac_list[2])
def _get_invoice_reference_se_ocr4(self, reference):
self.ensure_one()
ocr_length = self.journal_id.l10n_se_invoice_ocr_length
if len(reference) + 1 > ocr_length:
raise UserError(
_("OCR Reference Number length is greater than allowed. Allowed length in invoice journal setting is %s."
) % str(ocr_length))
reference = reference.rjust(ocr_length - 1, '0')
return reference + luhn.calc_check_digit(reference)
def get_order_no(self):
return (self.id * 10) + int(luhn.calc_check_digit(self.id))
def _get_kid_number(self):
self.ensure_one()
invoice_name = ''.join([i for i in self.name if i.isdigit()]).zfill(7)
ref = (str(self.partner_id.id).zfill(7)[-7:] + invoice_name[-7:])
return ref + luhn.calc_check_digit(ref)
#!/usr/bin/env python3
from pathlib import Path
from csv import reader
from random import randrange
from stdnum import luhn
tac_file = 'tac.csv'
tac_url = 'http://tacdb.osmocom.org/export/tacdb.csv'
if (not Path(tac_file).exists()):
print(tac_file, 'does not exist, downloading from', tac_url)
import urllib.request
urllib.request.urlretrieve(tac_url, tac_file)
with open(tac_file, 'r') as file:
csv_reader = reader(file, delimiter=',')
csv_data = list(csv_reader)
row_count = len(csv_data)
tac_list = csv_data[randrange(2, row_count)]
TAC = tac_list[0]
SN = f'{randrange(999999):06}'
IMEI0 = TAC + SN
CD = luhn.calc_check_digit(IMEI0)
IMEI = IMEI0 + CD
print(IMEI, '-', tac_list[1], tac_list[2])
def _check(value):
return luhn.calc_check_digit(value, alphabet=CHECK_ALPHABET)
def get_order_no(self):
return (self.id * 10) + int(luhn.calc_check_digit(self.id))
def _get_invoice_reference_se_ocr2(self, reference):
self.ensure_one()
return reference + luhn.calc_check_digit(reference)
def _get_invoice_reference_se_ocr3(self, reference):
self.ensure_one()
reference = reference + str(len(reference) + 2)[:1]
return reference + luhn.calc_check_digit(reference)
def calc_check_digits(number):
"""Calculate the check digits for the specified number. The number
passed should not have the check digit included. This function returns
both the number and character check digit candidates."""
check = luhn.calc_check_digit(number[1:])
return check + 'JABCDEFGHI'[int(check)]
def calc_check_digits(number):
"""Calculate the check digits for the specified number. The number
passed should not have the check digit included. This function returns
both the number and character check digit candidates."""
check = luhn.calc_check_digit(number[1:])
return check + 'JABCDEFGHI'[int(check)]
def do_random():
global IMEI
IMEI0 = f'{randrange(99999999999999):014}'
CD = luhn.calc_check_digit(IMEI0)
IMEI = IMEI0 + CD
print(IMEI,'- random')
