docx depreciated

Application/lib/steganography/docx_steg.py

@@ -1,155 +0,0 @@
-import numpy as np
-
-##################################################
-# Duplicate of file_steg.py, to remove           #
-##################################################
-class docx_steg:
-    def __init__(self, docx_file: str = "testfile.docx", bits_to_hide: list[int] = None) -> None:
-        """
-        Initialize the class
-        :param docx_file: PathName of the docx file to encode or decode
-        :type docx_file: str
-        :param bits_to_hide: Bit to hide the data in (1 - LSB to 8 - MSB)
-        :type bits_to_hide: list[int]
-        """
-        raise NotImplementedError("Duplicate of file_steg.py, to remove")
-        self.docx_file = docx_file
-        self.bits_to_hide = [8 - bit_pos for bit_pos in bits_to_hide] if bits_to_hide else [1]  # Default is LSB
-        self.delimiter = "====="  # Delimiter to indicate the end of the secret data
-
-    def encode(self, secret_data: str = "Hello World") -> bytes:
-        """
-        Encode the secret data into the docx file
-
-        :param secret_data: String of data to hide
-
-        :return: Encoded docx file as bytes
-        :rtype: bytes
-        """
-
-        with open(self.docx_file, "rb") as f:
-            data = f.read()
-
-        # Max Bytes to encode
-        n_bytes = len(data) // 8
-
-        # Check if secret data can be encoded into docx file
-        # print(f"Secret data length: {len(secret_data)}, Max data length: {n_bytes}")
-        if len(secret_data) > n_bytes:
-            raise ValueError(
-                f"[-] Error: Binary Secret data length {len(secret_data)} is greater than data length {n_bytes}")
-
-        # Convert secret data to binary
-        binary_secret_data = self.to_bin(secret_data)
-
-        # Add delimiter
-        binary_secret_data += self.to_bin(self.delimiter)
-
-        data_index = 0
-        encoded_data = bytearray()
-
-        print(f"[+] Starting encoding...")
-        # Encode data into docx
-        for byte in data:
-            if data_index >= len(binary_secret_data):
-                encoded_data.append(byte)
-            else:
-                for bit_pos in self.bits_to_hide:
-                    if data_index < len(binary_secret_data):
-                        byte = list(format(byte, "08b"))
-                        byte = list(byte)
-                        byte[bit_pos] = binary_secret_data[data_index]
-                        data_index += 1
-                        # Convert byte back to int
-                        byte = int("".join(byte), 2)
-                encoded_data.append(byte)
-
-        print(f"[+] Encoding completed successfully.")
-        return bytes(encoded_data)
-
-    def decode(self) -> str:
-        """
-        Decode the secret data from the docx file
-        :return: Decoded secret data
-        :rtype: str
-        """
-        with open(self.docx_file, "rb") as f:
-            data = f.read()
-
-        binary_data = ""
-        print(f"[+] Starting decoding...")
-        for byte in data:
-            # Add byte to binary data
-            # Convert byte from int to binary string
-            byte = format(byte, "08b")
-            # Pad byte with 0's to make sure it has 8 bits
-            byte = "0" * (8 - len(byte)) + byte
-            for bit_pos in self.bits_to_hide:
-                binary_data += byte[bit_pos]
-
-        all_bytes = [binary_data[i: i + 8] for i in range(0, len(binary_data), 8)]
-
-        decoded_data = ""
-        for byte in all_bytes:
-            decoded_data += chr(int(byte, 2))
-            if decoded_data[-len(self.delimiter):] == self.delimiter:
-                break
-
-        print(f"[+] Decoding completed successfully.")
-        # Return the decoded data
-        return decoded_data[:-len(self.delimiter)]
-
-    def to_bin(self, data: str) -> str | list[str]:
-        """
-        Convert text file data to binary format as string
-        :param data: String
-        :type data: str
-        :return: Binary Data: String | List[String]
-        """
-
-        if isinstance(data, str):
-            return ''.join([format(ord(i), "08b") for i in data])
-        elif isinstance(data, bytes) or isinstance(data, np.ndarray):
-            return [format(i, "08b") for i in data]
-        elif isinstance(data, int) or isinstance(data, np.unit8):
-            return format(data, "08b")
-        else:
-            raise TypeError("Type not supported")
-
-    def from_bin(self, data: str) -> str:
-        """
-        Convert binary `data` back to the original format
-        :param data: String
-        :type data: str
-        :return: Original Data: String
-        """
-
-        return ''.join([chr(int(data[i:i + 8], 2)) for i in range(0, len(data), 8)])
-
-
-if __name__ == "__main__":
-    with open("secret_data.txt", "r") as f:
-        secret_data = f.read()
-
-    bits_to_hide = np.random.choice(range(1, 9), np.random.randint(1, 9), replace=False)
-    bits_to_hide = list(bits_to_hide)
-    bits_to_hide.sort()
-    # bits_to_hide = [1]
-    print(f"Bits to hide: {bits_to_hide}")
-
-    docx_file = "testfile.docx"
-    output_encoded_docx = "encoded_document.docx"
-
-
-    # Encode data, get as bytes
-    encoded_data = docx_steg(docx_file=docx_file, bits_to_hide=bits_to_hide).encode(secret_data=secret_data)
-
-    # Write encoded data to file
-    with open(output_encoded_docx, "wb") as f:
-        f.write(encoded_data)
-
-    # Decode data from encoded docx file
-    decoded_data = docx_steg(docx_file=output_encoded_docx, bits_to_hide=bits_to_hide).decode()
-
-    # Print the decoded data
-    print("[+] Decoded data:", decoded_data)