


"""simple docstring"""
import os
import sys

from . import rsa_key_generator as rkg

UpperCAmelCase   =	128
UpperCAmelCase   =	256

def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE      ):




   """simple docstring"""







   _lowerCamelCase  :				Union[str, Any]      =		message.encode("""ascii"""      )

   _lowerCamelCase  :				int      =		[]
   for block_start in range(0	,   len(__snake_case      )	,   __snake_case      ):
      _lowerCamelCase  :				Optional[Any]      =		0
      for i in range(__snake_case	,   min(block_start + block_size	,   len(__snake_case      )      )      ):
         block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
      block_ints.append(__snake_case      )
   return block_ints

def 							_snake_case			(      __snake_case       :			list[int]	,   __snake_case       :			int	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE      ):




   """simple docstring"""







   _lowerCamelCase  :				list[str]      =		[]
   for block_int in block_ints:
      _lowerCamelCase  :				list[str]      =		[]
      for i in range(block_size - 1	,   -1	,   -1      ):
         if len(__snake_case      ) + i < message_length:
            _lowerCamelCase  :				Optional[int]      =		block_int // (BYTE_SIZE**i)
            _lowerCamelCase  :				Dict      =		block_int % (BYTE_SIZE**i)
            block_message.insert(0	,   chr(__snake_case      )      )
      message.extend(__snake_case      )
   return "".join(__snake_case      )

def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			tuple[int, int]	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE      ):




   """simple docstring"""







   _lowerCamelCase  :				Dict      =		[]
   _lowerCamelCase      ,						_lowerCamelCase  :				Tuple      =		key

   for block in get_blocks_from_text(__snake_case	,   __snake_case      ):
      encrypted_blocks.append(pow(__snake_case	,   __snake_case	,   __snake_case      )      )
   return encrypted_blocks

def 							_snake_case			(      __snake_case       :			list[int]	,   __snake_case       :			int	,   __snake_case       :			tuple[int, int]	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE	,   ):




   """simple docstring"""







   _lowerCamelCase  :				List[Any]      =		[]
   _lowerCamelCase      ,						_lowerCamelCase  :				List[Any]      =		key
   for block in encrypted_blocks:
      decrypted_blocks.append(pow(__snake_case	,   __snake_case	,   __snake_case      )      )
   return get_text_from_blocks(__snake_case	,   __snake_case	,   __snake_case      )

def 							_snake_case			(      __snake_case       :			str      ):




   """simple docstring"""







   with open(__snake_case      ) as fo:
      _lowerCamelCase  :				Union[str, Any]      =		fo.read()
   _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				int      =		content.split(""","""      )
   return (int(__snake_case      ), int(__snake_case      ), int(__snake_case      ))

def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			str	,   __snake_case       :			str	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE	,   ):




   """simple docstring"""







   _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				int      =		read_key_file(__snake_case      )
   if key_size < block_size * 8:
      sys.exit(
          """ERROR: Block size is {} bits and key size is {} bits. The RSA cipher """
          """requires the block size to be equal to or greater than the key size. """
          """Either decrease the block size or use different keys.""".format(
              block_size * 8	,   __snake_case      )      )

   _lowerCamelCase  :				Optional[Any]      =		[str(__snake_case      ) for i in encrypt_message(__snake_case	,   (n, e)	,   __snake_case      )]

   _lowerCamelCase  :				Any      =		""",""".join(__snake_case      )
   _lowerCamelCase  :				str      =		F'{len(__snake_case      )}_{block_size}_{encrypted_content}'
   with open(__snake_case	,   """w"""      ) as fo:
      fo.write(__snake_case      )
   return encrypted_content

def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			str      ):




   """simple docstring"""







   _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				List[Any]      =		read_key_file(__snake_case      )
   with open(__snake_case      ) as fo:
      _lowerCamelCase  :				List[str]      =		fo.read()
   _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				Union[str, Any]      =		content.split("""_"""      )
   _lowerCamelCase  :				Union[str, Any]      =		int(__snake_case      )
   _lowerCamelCase  :				Union[str, Any]      =		int(__snake_case      )

   if key_size < block_size * 8:
      sys.exit(
          """ERROR: Block size is {} bits and key size is {} bits. The RSA cipher """
          """requires the block size to be equal to or greater than the key size. """
          """Did you specify the correct key file and encrypted file?""".format(
              block_size * 8	,   __snake_case      )      )

   _lowerCamelCase  :				Union[str, Any]      =		[]
   for block in encrypted_message.split(""","""      ):
      encrypted_blocks.append(int(__snake_case      )      )

   return decrypt_message(__snake_case	,   __snake_case	,   (n, d)	,   __snake_case      )

def 							_snake_case			(      ):




   """simple docstring"""







   _lowerCamelCase  :				Optional[Any]      =		"""encrypted_file.txt"""
   _lowerCamelCase  :				Optional[Any]      =		input(R"""Encrypt\Decrypt [e\d]: """      )

   if response.lower().startswith("""e"""      ):
      _lowerCamelCase  :				str      =		"""encrypt"""
   elif response.lower().startswith("""d"""      ):
      _lowerCamelCase  :				List[str]      =		"""decrypt"""

   if mode == "encrypt":
      if not os.path.exists("""rsa_pubkey.txt"""      ):
         rkg.make_key_files("""rsa"""	,   1024      )

      _lowerCamelCase  :				Any      =		input("""\nEnter message: """      )
      _lowerCamelCase  :				Optional[Any]      =		"""rsa_pubkey.txt"""
      print(F'Encrypting and writing to {filename}...'      )
      _lowerCamelCase  :				List[Any]      =		encrypt_and_write_to_file(__snake_case	,   __snake_case	,   __snake_case      )

      print("""\nEncrypted text:"""      )
      print(__snake_case      )

   elif mode == "decrypt":
      _lowerCamelCase  :				Tuple      =		"""rsa_privkey.txt"""
      print(F'Reading from {filename} and decrypting...'      )
      _lowerCamelCase  :				int      =		read_from_file_and_decrypt(__snake_case	,   __snake_case      )
      print("""writing decryption to rsa_decryption.txt..."""      )
      with open("""rsa_decryption.txt"""	,   """w"""      ) as dec:
         dec.write(__snake_case      )

      print("""\nDecryption:"""      )
      print(__snake_case      )


if __name__ == "__main__":
 main()





"""simple docstring"""
from dataclasses import dataclass

UpperCAmelCase   =	"""0.1"""
UpperCAmelCase   =	"""Lucia Harcekova"""




@dataclass
class   lowercase__							:
   __UpperCAmelCase       					=				42
   __UpperCAmelCase       					=				42
   __UpperCAmelCase       					=				42





   def __repr__(       self)     ->     str:
      return F'({self.offset}, {self.length}, {self.indicator})'







class   lowercase__							:





   def __init__(       self			,      SCREAMING_SNAKE_CASE = 13			,      SCREAMING_SNAKE_CASE = 6)     ->     None:
      _lowerCamelCase  :				Optional[Any]      =		window_size
      _lowerCamelCase  :				List[str]      =		lookahead_buffer_size
      _lowerCamelCase  :				List[Any]      =		self.window_size - self.lookahead_buffer_size





   def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE)     ->     list[Token]:
      _lowerCamelCase  :				Union[str, Any]      =		[]
      _lowerCamelCase  :				Tuple      =		""""""

      # while there are still characters in text to compress
      while text:
         # find the next encoding phrase
         # - triplet with offset, length, indicator (the next encoding character)
         _lowerCamelCase  :				List[Any]      =		self._find_encoding_token(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE)

         # update the search buffer:
         # - add new characters from text into it
         # - check if size exceed the max search buffer size, if so, drop the
         #   oldest elements
         search_buffer += text[: token.length + 1]
         if len(SCREAMING_SNAKE_CASE) > self.search_buffer_size:
            _lowerCamelCase  :				int      =		search_buffer[-self.search_buffer_size :]

         # update the text
         _lowerCamelCase  :				Tuple      =		text[token.length + 1 :]

         # append the token to output
         output.append(SCREAMING_SNAKE_CASE)

      return output





   def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE)     ->     str:
      _lowerCamelCase  :				str      =		""""""

      for token in tokens:
         for _ in range(token.length):
            output += output[-token.offset]
         output += token.indicator

      return output





   def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE)     ->     Token:

      if not text:
         raise ValueError("""We need some text to work with.""")

      # Initialise result parameters to default values
      _lowerCamelCase      ,						_lowerCamelCase  :				List[str]      =		0, 0

      if not search_buffer:
         return Token(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      text[length])

      for i, character in enumerate(SCREAMING_SNAKE_CASE):
         _lowerCamelCase  :				Tuple      =		len(SCREAMING_SNAKE_CASE) - i
         if character == text[0]:
            _lowerCamelCase  :				Any      =		self._match_length_from_index(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      0			,      SCREAMING_SNAKE_CASE)
            # if the found length is bigger than the current or if it's equal,
            # which means it's offset is smaller: update offset and length
            if found_length >= length:
               _lowerCamelCase      ,						_lowerCamelCase  :				Optional[int]      =		found_offset, found_length

      return Token(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      text[length])





   def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE)     ->     int:
      if not text or text[text_index] != window[window_index]:
         return 0
      return 1 + self._match_length_from_index(
          SCREAMING_SNAKE_CASE			,      window + text[text_index]			,      text_index + 1			,      window_index + 1)


if __name__ == "__main__":
 from doctest import testmod

 testmod()
 # Initialize compressor class
 UpperCAmelCase   =	LZaaCompressor(window_size=13, lookahead_buffer_size=6)

 # Example
 UpperCAmelCase   =	"""cabracadabrarrarrad"""
 UpperCAmelCase   =	lzaa_compressor.compress(TEXT)
 print(lzaa_compressor.compress("""ababcbababaa"""))
 UpperCAmelCase   =	lzaa_compressor.decompress(compressed_text)
 assert decompressed_text == TEXT, "The LZ77 algorithm returned the invalid result."

