def breakit(input_file: IO[str], output_file: IO[str]) -> IO[str]:
"""
Brute force breaker to crack encrypted text.
Examples:
$ python breaker.py file_to_crack.txt -o output_file_name.txt
"""
click.echo('Decoding...')
encrypted_text = input_file.read()
# load an English dictionary
english_dictionary = sc.SpellChecker("en")
max_number_of_english_words = 0
# tries possible alphabet shifts and shows a progress bar
for key in tqdm(range(26)):
plaintext = encrypt(encrypted_text, -key)
number_of_english_words = 0
for word in plaintext.split(' '):
# check in the word_frequency list of words from the dictionary
if word in english_dictionary.word_frequency:
number_of_english_words += 1
if number_of_english_words > max_number_of_english_words:
max_number_of_english_words = number_of_english_words
best_plaintext = plaintext
best_key = key
click.echo(f'Completed. The most likely encryption key is {best_key}. \
\nIt gives the following plaintext:\n{best_plaintext[:1000]}...\n')
output_file.write(best_plaintext)
def send():
ending = '\nДля отписки от рассылки напиши /unsub'
message = request.get_json()
validation = RequestSchema().validate(message)
logger.info(message)
logger.info(validation)
if validation != {}:
return jsonify(validation)
if 'X-Forwarded-For' in request.headers:
ip = request.headers.getlist('X-Forwarded-For')[0]
elif 'X-Real-Ip' in request.headers:
ip = request.headers.getlist('X-Real-Ip')[0]
else:
ip = request.remote_addr
if ip not in settings.ip:
return jsonify('Forbidden')
if settings.encryption:
if message['sign'] != encrypt(message):
return jsonify('Forbidden')
text = message['message']
try:
link = message['link']
except KeyError:
link = None
response = {}
if 'discord' in message['dispatchers']:
response.update({"discord": discord_bot.main(text, link)})
if 'telegram' in message['dispatchers']:
response.update({"telegram": tele_bot.main(text, link)})
if 'vk' in message['dispatchers']:
response.update({"vk": vk_bot.main(text + ending, link)})
return jsonify(response)
def test_break_code_wonka_wrap():
encrypted = encrypt('We are the dreams of makers and the makers of dreams 111', 30)
actual = break_code(encrypted)
expected = 'We are the dreams of makers and the makers of dreams 111'
assert actual == expected
def test_encrypt_lower():
actual = encrypt('abc', 1)
expected = 'bcd'
assert actual == expected
def test_break_code_wrap():
encrypted = encrypt('It was the best of times, it was the worst of times.', 30)
actual = break_code(encrypted)
expected = 'It was the best of times, it was the worst of times.'
assert actual == expected
def test_encrypt_non_string():
actual = encrypt('X8Z', 1)
expected = 'Y8A'
assert actual == expected
def test_encrypt_upper_wrap():
actual = encrypt('XYZ', 1)
expected = 'YZA'
assert actual == expected
def test_encrypt_upper():
actual = encrypt('ABC', 1)
expected = 'BCD'
assert actual == expected
def test_encrypt__lower_wrap():
actual = encrypt('xyz', 1)
expected = 'yza'
assert actual == expected
