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hexdecode.py
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hexdecode.py
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"""
Script Name: hexdecode.py
Author: Justin Lund
Last modified: 04/16/24
Date created: 06/06/23
Version: 1.1.2
Purpose:
Decodes hex
Usage:
python3 hexdecode.py -i hex.txt -o output.txt
python3 hexdecode.py -i hex.txt -p
Roadmap:
- Add feature to decode hex in files with other content
- Reference code frfom unicode-escape-decode.py for this
"""
import argparse
import binascii
# setup argument parser
parser = argparse.ArgumentParser()
parser.add_argument("-i", "--input", help="Input file containing hex string")
parser.add_argument("-o", "--output", help="Output file to write decoded string")
parser.add_argument("-p", "--print", action="store_true", help="Print the output to the screen")
args = parser.parse_args()
# open and read the input file
with open(args.input, 'r') as file:
hex_string = file.read().replace('\n', '')
# remove unnecessary characters
hex_string = hex_string.replace(",", "").replace("\\", "").replace(" ", "")
# convert hex to bytes
bytes_object = bytes.fromhex(hex_string)
# decode bytes to ASCII
ascii_string = bytes_object.decode("ASCII", errors="ignore")
# print or write to file based on arguments
if args.output:
with open(args.output, 'w') as file:
file.write(ascii_string + '\n') # Append a newline at the end of the file
print(f"Decoded data has been written to {args.output}")
if args.print:
print(ascii_string)
elif args.print or not args.output:
print(ascii_string)