def check_delete_mes(self, file_name):
Steganography.encode_to_bmp(file_name, "Some text")
coded_text = Steganography.decode_from_bmp(file_name)
self.assertEqual("Some text", coded_text)
Steganography.delete_message_from_bmp(file_name)
with self.assertRaises(Exception) as cm:
Steganography.decode_from_bmp(file_name)
exception = cm.exception
self.assertEqual(strings.DATA_CORRUPTED, exception.args[0])
def run():
parser = create_parser()
namespace = parser.parse_args(sys.argv[1:])
many_files = False
if len(namespace.filepath.split()) != 1:
many_files = True
namespace.filepath = namespace.filepath.split()
if not many_files:
if namespace.encode is not None and not namespace.decode:
if namespace.clear:
Steganography.delete_message_from_bmp(namespace.filepath)
Steganography.encode_to_bmp(namespace.filepath, namespace.encode)
return strings.ENCODE_COMPLETE
elif namespace.decode and namespace.encode is None:
message = Steganography.decode_from_bmp(namespace.filepath)
if namespace.clear:
Steganography.delete_message_from_bmp(namespace.filepath)
return message
elif (namespace.clear and namespace.encode is None
and not namespace.decode):
return Steganography.delete_message_from_bmp(namespace.filepath)
else:
return strings.WRONG_ARGUMENTS
else:
if namespace.encode is not None and not namespace.decode:
if namespace.clear:
ManySteganographyAdapter.delete_message_from_many_bmp(
namespace.filepath)
ManySteganographyAdapter.encode_to_many_bmp(
namespace.encode, namespace.filepath)
return strings.ENCODE_COMPLETE
elif namespace.decode and namespace.encode is None:
message = ManySteganographyAdapter.decode_from_many_bmp(
namespace.filepath)
if namespace.clear:
ManySteganographyAdapter.delete_message_from_many_bmp(
namespace.filepath)
return message
elif (namespace.clear and namespace.encode is None
and not namespace.decode):
return ManySteganographyAdapter.delete_message_from_many_bmp(
namespace.filepath)
else:
return strings.WRONG_ARGUMENTS
def encode_to_many_bmp(message, files):
"""Кодирует сообщение в большое количество файлов"""
for file in files:
c = 0
for i in range(len(files)):
if files[i] == file:
c += 1
if c > 1:
raise AttributeError(strings.FILES_IN_PATH_REPEATED)
message_list = ManySteganographyAdapter._get_secret_list_from_message(
message, len(files))
for i in range(len(files)):
Steganography.encode_to_bmp(files[i], message_list[i])
def check_file_code_decode(self, file_path):
Steganography.encode_to_bmp(file_path, "Code")
result = Steganography.decode_from_bmp((file_path))
self.assertEqual("Code", result)
