def decrypt(self, from_path, to_path, encryption_data):
if encryption_data["algorithm"] == SecurityAlgorithm.none:
shutil.copyfile(from_path, to_path)
return Result.success(True)
cipher = self.get_cipher(encryption_data)
if not cipher.is_ok():
return cipher
cipher = cipher.result()
decryptor = cipher.decryptor()
block_size = cipher.algorithm.block_size
padder = padding.PKCS7(block_size).unpadder()
with open(from_path, "rb") as file:
data = file.read()
crypted = decryptor.update(data)
padded_data = padder.update(crypted)
padded_data += padder.finalize()
with open(to_path, "wb") as file:
file.write(padded_data)
return Result.success(True)
def check_media(self, crypto_data):
key_type = crypto_data["key_type"]
media_path = crypto_data["media_path"]
take_file_from_yadisk = crypto_data["take_file_from_yadisk"]
if key_type in (KeyType.new_media, KeyType.existing_media):
if take_file_from_yadisk:
result = self.yadisk_model.download_media(
media_path, self.temp_dir.name)
#result = self.yadisk_model.download_media(media_path, "D:/yanileda/trash")
return result
else:
return Result.success(media_path)
else:
return Result.success(media_path)
def check_url(self, url):
logger.info("check url " + url)
try:
result = self.disk.public_exists(url)
except NotFoundError:
result = False
return Result.success(result)
def set_verification_code(self, code):
logger.info("Checking ver.code %s" % code)
# time.sleep(5)
try:
response = self.disk.get_token(code)
except yadisk.exceptions.BadRequestError:
return Result.success(False)
self.disk.token = response.access_token
result = self.disk.check_token()
if result:
logger.info("Connected to Yadisk")
else:
logger.error("Cannot connect to Yadisk")
return Result.success(result)
def set_media_folder(self, path):
logger.info("set media folder %s" % path)
if not self.disk.exists(path):
return Result.failed("Media path '%s' doesn't exists" % path)
if not self.disk.is_dir(path):
return Result.failed("Media path '%s' isn't directory" % path)
self.media_folder = path
return Result.success()
def get_listdir(self, url):
if self.check_url(url):
if self.disk.is_public_dir(url):
listdir = list(self.disk.public_listdir(url))
listdir.sort(key=lambda x: x.type == "dir", reverse=True)
names = [self.header, ]
for i in listdir:
names.append(self.get_info(i))
return Result.success((names, url))
else:
return Result.failed("Url isn't public")
return Result.failed("Url doesnt't exist")
def get_listdir(self, path=None):
logger.info("Open path %s" % path)
if path is None:
path = magic_const.YADISK_PREFIX
if not self.disk.is_dir(path):
return Result.failed("Path doesn't exist")
names = [
self.header,
]
listdir = list(self.disk.listdir(path))
listdir.sort(key=lambda x: x.type == "dir", reverse=True)
for i in listdir:
names.append(self.get_info(i))
return Result.success((names, path))
def download_media(self, media_name, dir_name):
# check media
media_path = Path(self.media_folder) / media_name
logger.info("Check path %s" % media_path.as_posix())
if not self.disk.exists(media_path.as_posix()):
return Result.failed("Media path isn't found")
temp_path = Path(dir_name) / media_name
download_result = self.download(media_path.as_posix(),
temp_path.as_posix())
if download_result.is_ok():
if download_result.result():
return Result.success(temp_path.as_posix())
else:
return Result.failed("Something has gone wrong")
else:
return download_result
def get_cipher(self, crypto_data):
#assert len(encryption_data) == 4
algorithm_type = crypto_data["algorithm"]
key_type = crypto_data["key_type"]
media_path = crypto_data["media_path"]
key = crypto_data["key"]
media_type = crypto_data["media_type"]
# get key from media if need it
key = self.get_key(algorithm_type, key_type, key, media_path,
media_type)
if not key.is_ok():
return key
else:
key = key.result()
algorithm = self.get_algorithm(algorithm_type, key)
cipher = Cipher(algorithm, mode=modes.ECB(), backend=default_backend())
# print(cipher.algorithm.block_size)
# print(cipher.block_size)
return Result.success(cipher)
def download(self, from_path, to_path):
if self.check_url(from_path):
self.disk.download_public(from_path, to_path)
return Result.success()
def get_meta(self, url):
logger.info("get meta " + url)
info = self.disk.get_public_meta(url)
return Result.success(([self.header,
(info.type, info.name, info.public_url,
info.created.strftime(magic_const.DATETIME_FORMAT))], url))
def get_key(self, algorithm_type, key_type, key, media_path, media_type):
logger.info("Key-file path %s" % media_path)
if key_type == KeyType.new_symbols:
if not key:
return Result.failed("Why have you deleted the key?")
return Result.success(key)
elif key_type == KeyType.existing_symbols:
if not key:
return Result.failed("Write down password")
return Result.success(key)
elif key_type == KeyType.new_binary:
if not media_path:
return Result.failed("Select file for key")
key = self.generate_key(algorithm_type)
with open(media_path, "wb") as f:
f.write(key)
return Result.success(key)
elif key_type == KeyType.existing_binary:
if not media_path:
return Result.failed("Select file with key")
with open(media_path, "rb") as f:
key = f.read()
return Result.success(key)
elif key_type == KeyType.new_media:
if not key:
return Result.failed("Write down password")
if not media_path:
return Result.failed("Select media file")
if media_type == MediaType.f5steganography:
key_key = self.generate_key(algorithm_type)
embed_into_image(media_path, key_key.decode("utf-8"), key)
elif media_type == MediaType.fractals:
key_size = magic_const.KEY_LENGTH[algorithm_type]
key_key = fractals.generate_key(media_path,
key.decode("utf-8"), key_size)
elif media_type == MediaType.dct:
key_size = magic_const.KEY_LENGTH[algorithm_type]
key_key = dct_algorithm.generate_key(media_path,
key.decode("utf-8"),
key_size)
else:
logger.error("Bad media type %s" % media_type)
return Result.success(key_key)
elif key_type == KeyType.existing_media:
if not key:
return Result.failed("Write down password")
if not media_path:
return Result.failed("Select media file")
if media_type == MediaType.f5steganography:
key_key = extract_from_image(media_path, key.decode("utf-8"))
key_key = key_key.encode("utf-8")
logger.info("Key len %d" % len(key_key))
elif media_type == MediaType.fractals:
key_size = magic_const.KEY_LENGTH[algorithm_type]
key_key = fractals.generate_key(media_path,
key.decode("utf-8"), key_size)
elif media_type == MediaType.dct:
key_size = magic_const.KEY_LENGTH[algorithm_type]
key_key = dct_algorithm.generate_key(media_path,
key.decode("utf-8"),
key_size)
else:
logger.error("Bad media type %s" % media_type)
return Result.success(key_key)
def download(self, from_path, to_path):
logger.info("download {} to {}".format(from_path, to_path))
self.disk.download(from_path, to_path)
return Result.success()
def upload(self, from_path, to_path):
logger.info("upload {} to {}".format(from_path, to_path))
self.disk.upload(from_path, to_path, overwrite=True)
return Result.success()
