diff --git a/msr90.py b/msr90.py
@@ -1,76 +1,168 @@
#!/usr/bin/env python
-# MSR90 Card Reader - Developed by acidvegas in Python (https://acid.vegas/msr90)
+# MSR90 Magnetic Stripe Reader - Developed by acidvegas in Python (https://git.acid.vegas/msr90)
+import getpass
import re
+import sys
+
+
+def format_pan(pan: str) -> str:
+ '''
+ Format the Primary Account Number (PAN) by grouping the digits in sets of 4
+
+ :param pan: The Primary Account Number (PAN) to format
+ '''
+
+ return ' '.join(pan[i:i+4] for i in range(0, len(pan), 4))
+
+
+def format_exp_date(exp_date: str) -> str:
+ '''
+ Format the expiration date by to be MM/YY
+
+ :param exp_date: The expiration date to format'''
+
+ return exp_date[2:4] + '/' + exp_date[0:2]
+
+
+def service_code_descriptions(digit, code):
+ '''
+ Get the description for the service code digit
+
+ :param digit: The digit number (1, 2, or 3)
+ :param code: The code value for the digit
+ '''
+
+ descriptions = {
+ '1': {
+ '1': 'International interchange OK',
+ '2': 'International interchange, use IC (chip) where feasible',
+ '5': 'National interchange only except under bilateral agreement',
+ '6': 'National interchange only, use IC (chip) where feasible',
+ '7': 'No interchange except under bilateral agreement (closed loop)',
+ '9': 'Test'
+ },
+ '2': {
+ '0': 'Normal',
+ '2': 'Contact issuer via online means',
+ '4': 'Contact issuer via online means except under bilateral agreement'
+ },
+ '3': {
+ '0': 'No restrictions, PIN required',
+ '1': 'No restrictions',
+ '2': 'Goods and services only (no cash)',
+ '3': 'ATM only, PIN required',
+ '4': 'Cash only',
+ '5': 'Goods and services only (no cash), PIN required',
+ '6': 'No restrictions, use PIN where feasible',
+ '7': 'Goods and services only (no cash), use PIN where feasible'
+ }
+ }
+
+ return descriptions[str(digit)].get(code, 'Unknown')
-# ANSI Escape Codes
-YELLOW = '\033[93m'
-RESET = '\033[0m'
-
-# Numeric values for the service code
-service_code_values = {
- '0': 'No restrictions and PIN required.',
- '1': 'No restrictions.',
- '2': 'Goods and services only (no cash).',
- '3': 'ATM only and PIN required.',
- '4': 'Cash only.',
- '5': 'Goods and services only (no cash), PIN required.',
- '6': 'No restrictions, use of PIN depends on issuers requirements.',
- '7': 'Goods and services only, use of PIN depends on issuers requirements.'
-}
-
-# Description of the format code
-format_code_values = {
- 'A': 'Reserved for proprietary use of the card issuer.',
- 'B': 'Used by financial and credit card systems.'
-}
def parse_magnetic_stripe(data: str):
- '''
- Parse the raw data from the magnetic stripe of a card.
-
- :param data: Raw data from the magnetic stripe of a card.
- '''
-
- # Regex to match the track 1 and track 2 data
- track1 = re.search(r'%([AB])(\d+)\^([^?^]+)\^(\d{4})(\d{3}).*?\?', data)
- track2 = re.search(r';(\d+)=(\d{4})(\d{3}).*?\?', data)
-
- # Check if the data is valid
- if not track1 or not track2:
- raise ValueError('Invalid data format')
-
- # Parse the data from the track 1 and track 2
- format_code = track1.group(1)
- account_number = track1.group(2)
- name = track1.group(3).strip()
- expiry_date = track1.group(4)
- expiry_date = f'{expiry_date[2:4]}/{expiry_date[0:2]}'
- service_code = track1.group(5)
-
- service_code_description = [
- f'{service_code[0]} - {service_code_values.get(service_code[0], \'Unknown\')}',
- f'{service_code[1]} - {service_code_values.get(service_code[1], \'Unknown\')}',
- f'{service_code[2]} - {service_code_values.get(service_code[2], \'Unknown\')}'
- ]
-
- format_code_description = format_code_values.get(format_code, 'Unknown')
-
- # Print the parsed data
- print(f'{YELLOW}Name :{RESET} {name}')
- print(f'{YELLOW}Account Number :{RESET} {account_number}')
- print(f'{YELLOW}Expiration Date :{RESET} {expiry_date}')
- print(f'{YELLOW}Service Code :{RESET} {service_code}')
- for item in service_code_description:
- print(' '*18 + item)
- print(f'{YELLOW}Format Code :{RESET} {format_code} ({format_code_description})')
- print(f'{YELLOW}Track 1 :{RESET} {track1.group(0)}')
- print(f'{YELLOW}Track 2 :{RESET} {track2.group(0)}')
-
-def main():
- print('Please swipe the card...')
- data = input()
- parse_magnetic_stripe(data)
+ '''
+ Parse the magnetic stripe data and print the results
+
+ :param data: The raw magnetic stripe data to parse
+ '''
+
+ # Patterns for specific track data parsing
+ track1_pattern = r'^%([AB])(\d{1,19})\^([^\^]{2,26})\^(\d{4})(\d{3})([^\?]*?)\?(\w?)'
+ track2_pattern = r';(\d{1,19})=(\d{4})(\d{3})(.*?)\?$'
+
+ # Generic patterns to capture raw data if specific parsing fails
+ generic_track1_pattern = r'(%[AB][^\?]+\?)'
+ generic_track2_pattern = r'(;[^\?]+\?)'
+ generic_track3_pattern = r'(\+[^\?]+\?)'
+
+ # Attempt to match the track data
+ track1_match = re.search(track1_pattern, data)
+ track2_match = re.search(track2_pattern, data)
+ track3_match = re.search(generic_track3_pattern, data)
+
+ # Track 1 specific parsing
+ if track1_match:
+ format_code, pan, name, exp_date, service_code, discretionary_data, lrc = track1_match.groups()
+ if format_code == 'A':
+ print('Error: Unsupported format code \'A\'. Exiting.')
+ sys.exit(1)
+ formatted_pan = format_pan(pan)
+ formatted_exp_date = format_exp_date(exp_date)
+ desc1 = service_code_descriptions(1, service_code[0])
+ desc2 = service_code_descriptions(2, service_code[1])
+ desc3 = service_code_descriptions(3, service_code[2])
+ print_fields('Track 1 Data', [
+ ('Format Code', f'{format_code} - Financial cards (ISO/IEC 7813)'),
+ ('Primary Account Number (PAN)', formatted_pan),
+ ('Cardholder Name', name),
+ ('Expiration Date', formatted_exp_date),
+ ('Service Code Digit 1', f'{service_code[0]}: {desc1}'),
+ ('Service Code Digit 2', f'{service_code[1]}: {desc2}'),
+ ('Service Code Digit 3', f'{service_code[2]}: {desc3}'),
+ ('Discretionary Data', discretionary_data),
+ ('LRC (optional)', lrc),
+ ('Raw Track Data', track1_match.group(0))
+ ], '\033[93m')
+
+ # Fallback generic track 1
+ elif re.search(generic_track1_pattern, data):
+ print('Track 1 Data:')
+ print('Raw: ' + re.search(generic_track1_pattern, data).group(1))
+
+ print('\n')
+
+ # Track 2 specific parsing
+ if track2_match:
+ pan, exp_date, service_code, discretionary_data = track2_match.groups()
+ formatted_pan = format_pan(pan)
+ formatted_exp_date = format_exp_date(exp_date)
+ print_fields('Track 2 Data', [
+ ('Primary Account Number (PAN)', formatted_pan),
+ ('Expiration Date', formatted_exp_date),
+ ('Service Code', service_code),
+ ('Discretionary Data', discretionary_data),
+ ('Raw Track Data', track2_match.group(0))
+ ], '\033[96m')
+
+ # Fallback generic track 2
+ elif re.search(generic_track2_pattern, data):
+ print('Track 2 Data:')
+ print('Raw: ' + re.search(generic_track2_pattern, data).group(1))
+
+ print('\n')
+
+ # Track 3 generic data if found
+ if track3_match:
+ print('Track 3 Data:')
+ print('Raw: ' + track3_match.group(1))
+ else:
+ print('Track 3 Data: No data found.')
+
+
+def print_fields(title: str, fields: list, color_code: str):
+ '''
+ Print the fields in a formatted table
+
+ :param title: The title of the table
+ :param fields: The fields to print
+ :param color_code: The color code to use for the table
+ '''
+
+ max_len = max(len(name) for name, _ in fields)
+
+ print(title)
+
+ for name, value in fields:
+ print(color_code + name.ljust(max_len) + '\033[90m | \033[0m' + value)
+
+
if __name__ == '__main__':
- main()
+ try:
+ swipe_data = getpass.getpass(prompt='Please swipe the card: ')
+ parse_magnetic_stripe(swipe_data)
+ except Exception as e:
+ print('Error:', e)
|
