client/pyscripts/pm3_nfc2eml.py

   1 #!/usr/bin/env python3
   2 # -*- coding: utf-8 -*-
   3
   4 """
   5 Script to convert amiibo nfc Flipper Zero files to eml files to be used with Proxmark3
   6 Date: 18/05/2023
   7 Script Author: OscarAkaElvis
   8 Tested on: Linux and Windows
   9 OscarAkaElvis - https://twitter.com/OscarAkaElvis
  10 """
  11
  12 import re
  13 import argparse
  14 import os
  15 from os import path
  16 from sys import argv
  17
  18 # Vars
  19 script_name = path.basename(argv[0])
  20 script_version = "1.0"
  21
  22 # Function to print script's version
  23 def print_version():
  24     print()
  25     return 'v{}'.format(script_version)
  26
  27 # Check if the input file is a text file based on its content
  28 def is_text_file(file_path):
  29     with open(file_path, 'rb') as file:
  30         try:
  31             file_content = file.read().decode('utf-8')
  32             return all(ord(char) < 128 for char in file_content)
  33         except UnicodeDecodeError:
  34             return False
  35
  36 # Main script code
  37 def main():
  38     # Text help data
  39     description_text = "Script to convert amiibo nfc Flipper Zero files to eml files to be used with Proxmark3."
  40     epilog_text = 'Example:\n    python3 ' + script_name + ' -i file.nfc -o output.eml'
  41
  42     # Create an argument parser
  43     parser = argparse.ArgumentParser(exit_on_error=False, description=description_text, formatter_class=argparse.RawDescriptionHelpFormatter, epilog=epilog_text)
  44     # Add the input file argument
  45     parser.add_argument("-i", "--input", required=True, help="Path to the input nfc file.")
  46     # Add the output file argument
  47     parser.add_argument("-o", "--output", required=True, help="Name of the output eml file.")
  48     # Add the version argument
  49     parser.add_argument('-v', '--version', action='version', version=print_version(), help="Show script's version number and exit")
  50
  51     # Parse the command-line arguments
  52
  53     args = parser.parse_args()
  54
  55     # Extract the file paths from the command-line arguments
  56     file_path = args.input
  57     output_file = args.output
  58
  59     # Check if the target file exists
  60     if not os.path.isfile(file_path):
  61         print(f"[!] The input file '{file_path}' does not exist.")
  62         exit(0)
  63
  64     # Validation to check if the input file is a text file based on its content
  65     if not is_text_file(file_path):
  66         print("[!] The input file does not appear to be a nfc text file.")
  67
  68     # Check if the input file name has the .nfc extension
  69     if not file_path.lower().endswith('.nfc'):
  70         print("[+] Warning. The input file should have the '.nfc' extension.")
  71
  72     # Get the absolute path of the output file
  73     output_file_path = os.path.abspath(output_file)
  74
  75     # Check if the directory of the output file is writable
  76     output_dir = os.path.dirname(output_file_path)
  77     if not os.access(output_dir, os.W_OK):
  78         print(f"[!] The output directory '{output_dir}' is not writable or doesn't exist.")
  79
  80     # Check if the output file name has the .eml extension
  81     if not output_file.lower().endswith('.eml'):
  82         print("[+] Warning. The output file should have the '.eml' extension.")
  83
  84     # Read the target file
  85     with open(file_path, 'r') as file:
  86         file_content = file.read()
  87
  88     # Extract the data from each "Page X" line
  89     matches = re.findall(r'Page \d+:(.*?)$', file_content, re.MULTILINE | re.DOTALL)
  90
  91     if matches:
  92         # Remove spaces and convert to lowercase for each match
  93         extracted_data = [re.sub(r'\s', '', match).lower() for match in matches]
  94
  95         # Join the extracted data with line feeds
  96         result = '\n'.join(extracted_data)
  97
  98         # Write the extracted data to the output file
  99         with open(output_file_path, 'w', newline='\n') as output_file:
 100             output_file.write(result)
 101             print(f"[*] File converted successfully. Output eml file written as '{os.path.basename(output_file.name)}'.")
 102     else:
 103         # If the needed data is not there
 104         print("[!] Provided input file seems to not be a valid nfc file to work with.")
 105
 106 # Application entrypoint
 107 if __name__ == '__main__':
 108     try:
 109         main()
 110     except:
 111         pass
 112