使用Python破解RAR文件密码的代码实例

rar-bruteforce-crack.py [--start START] [--stop STOP] [--verbose VERBOSE] [--alphabet ALPHABET] [--file FILE]

rar a rartest.rar my_directory/* -p

python3 rar-bruteforce-crack.py --start 4 --stop 10 --alphabet 0123456789 --file rartest.rar --verbose True

unrar x rartest.rar

from argparse import ArgumentParser
from itertools import chain, product
from os.path import exists
from string import digits, ascii_lowercase, ascii_uppercase, ascii_letters, printable
from subprocess import PIPE, Popen
from time import time

chars = (
    # 默认的密码只来自数字 "0123456789"
    digits

    # 若需要更多的组合可加上如下
    # 若要加上小写英文字母 "abcdefghijklmnopqrstuvwxyz" 的排列组合
    # digits + ascii_lowercase

    # 若要加上大小写英文字母 ascii_uppercase
    # digits + ascii_lowercase + ascii_uppercase

    # 若要加上标点符号和空白号，直接用string库下的 printable
    # printable
)
special_chars = "();<>`|~\"&\'}]"

parser = ArgumentParser(description='Python combination generator to unrar')
parser.add_argument(
    '--start',
    help='Number of characters of the initial string [1 -> "a", 2 -> "aa"]',
    type=int,
)

parser.add_argument(
    '--stop',
    help='Number of characters of the final string [3 -> "aaa"]',
    type=int,
)

parser.add_argument(
    '--verbose', help='Show combintations', default=False, required=False
)

parser.add_argument(
    '--alphabet',
    help='alternative chars to combinations',
    default=chars,
    required=False,
)

parser.add_argument('--file', help='.rar file [file.rar]', type=str)

args = parser.parse_args()


def generate_combinations(alphabet, length, start=1):
    """Generate combinations using alphabet."""
    yield from (
        ''.join(string)
        for string in chain.from_iterable(
            product(alphabet, repeat=x) for x in range(start, length + 1)
        )
    )


def format(string):
    """Format chars to write them in shell."""
    formated = map(
        lambda char: char if char not in special_chars else f'\\{char}', string
    )
    return ''.join(formated)


if __name__ == '__main__':
    if not exists(args.file):
        raise FileNotFoundError(args.file)

    if args.stop < args.start:
        raise Exception('Stop number is less than start')

    start_time = time()
    for combination in generate_combinations(args.alphabet, args.stop, args.start):

        formated_combination = format(combination)

        if args.verbose:
            print(f'Trying: {combination}')

        cmd = Popen(
            f'unrar t -p{formated_combination} {args.file}'.split(),
            stdout=PIPE,
            stderr=PIPE,
        )
        out, err = cmd.communicate()

        if 'All OK' in out.decode():
            print(f'Password found: {combination}')
            print(f'Time: {time() - start_time}')
            exit()