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PEP 8 modifs excepté la taille maxi de 79 caractères
Vérification du code automatisée avec : autopep8 pzztool.py --in-place
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tmpz23
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113
pzztool.py
113
pzztool.py
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@ -1,17 +1,20 @@
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#!/usr/bin/env python3
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from math import ceil
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from struct import unpack, pack
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from pathlib import Path
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from os import listdir
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__version__ = "1.2"
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__author__ = "rigodron, algoflash, GGLinnk"
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__OriginalAutor__ = "infval"
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__license__ = "MIT"
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__status__ = "developpement"
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from os import listdir
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from pathlib import Path
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from struct import unpack, pack
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from math import ceil
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BIT_COMPRESSION_FLAG = 0x40000000
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FILE_LENGTH_MASK = 0x3FFFFFFF
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CHUNK_SIZE = 0x800
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def pzz_decompress(compressed_bytes: bytes):
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uncompressed_bytes = bytearray()
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compressed_bytes_size = len(compressed_bytes) // 2 * 2
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@ -53,6 +56,7 @@ def pzz_decompress(compressed_bytes: bytes):
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return uncompressed_bytes
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def bytes_align(bout: bytes):
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success = False
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while not success:
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@ -61,6 +65,7 @@ def bytes_align(bout: bytes):
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if hex(address).endswith("00"):
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break
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def pzz_compress(b):
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bout = bytearray()
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size_b = len(b) // 2 * 2
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@ -136,34 +141,40 @@ def pzz_compress(b):
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return bout
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def pzz_unpack(pzz_path, dest_folder):
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# Script BMS pour les pzz de ps2 (GioGio's adventure) -> https://zenhax.com/viewtopic.php?f=9&t=8724&p=39437#p39437
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if pzz_path.suffix != ".pzz" :
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raise("Unpack - Invalid file format" + pzz_path.suffix + " ; unpack take only .pzz fileformat")
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if pzz_path.suffix != ".pzz":
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raise("Unpack - Invalid file format" + pzz_path.suffix +
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" ; unpack take only .pzz fileformat")
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if dest_folder != Path('.') :
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if dest_folder != Path('.'):
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unpacked_pzz_path = dest_folder
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else :
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else:
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unpacked_pzz_path = pzz_path.parent / pzz_path.stem
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unpacked_pzz_path.mkdir(exist_ok=True)
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with open(pzz_path, "rb") as pzz_file:
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# file_count reçoit le nombre de fichiers présent dans le PZZ :
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file_count, = unpack(">I", pzz_file.read(4)) # On lit les 4 premiers octets (uint32 big-endian)
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# On lit les 4 premiers octets (uint32 big-endian)
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file_count, = unpack(">I", pzz_file.read(4))
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# files_descriptors reçoit un tuple avec l'ensemble des descripteurs de fichiers (groupes d'uint32 big-endian)
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files_descriptors = unpack(">{}I".format(file_count), pzz_file.read(file_count * 4))
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files_descriptors = unpack(">{}I".format(
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file_count), pzz_file.read(file_count * 4))
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print("File count:", file_count)
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offset = CHUNK_SIZE
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for index, file_descriptor in enumerate(files_descriptors): # on parcours le tuple de descripteurs de fichiers
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# on parcours le tuple de descripteurs de fichiers
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for index, file_descriptor in enumerate(files_descriptors):
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is_compressed = (file_descriptor & BIT_COMPRESSION_FLAG) != 0 # Le bit 30 correspond au flag de compression (bits numérotés de 0 à 31)
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if not is_compressed : # Si le fichier n'est pas compressé, on ajoute 'U' derrière l'index
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# Le bit 30 correspond au flag de compression (bits numérotés de 0 à 31)
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is_compressed = (file_descriptor & BIT_COMPRESSION_FLAG) != 0
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if not is_compressed: # Si le fichier n'est pas compressé, on ajoute 'U' derrière l'index
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compression_status = 'U'
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comp_str = ""
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else : # Si le fichier est compressé, on ajoute "_compressed" devant l'extension et 'C' derrière l'index
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else: # Si le fichier est compressé, on ajoute "_compressed" devant l'extension et 'C' derrière l'index
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compression_status = 'C'
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comp_str = "_compressed"
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@ -172,10 +183,12 @@ def pzz_unpack(pzz_path, dest_folder):
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# file_len reçoit la taille du fichier
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# la taille du fichier est un multiple de CHUNK_SIZE, on paddera avec des 0 jusqu'au fichier suivant
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file_len = file_descriptor * CHUNK_SIZE # file_len contient alors la taille du fichier en octets
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# file_len contient alors la taille du fichier en octets
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file_len = file_descriptor * CHUNK_SIZE
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# On forme le nom du nouveau fichier que l'on va extraire
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filename = "{:03}{}_{}{}".format(index, compression_status, pzz_path.stem, comp_str)
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filename = "{:03}{}_{}{}".format(
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index, compression_status, pzz_path.stem, comp_str)
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file_path = (unpacked_pzz_path / filename).with_suffix(".dat")
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print("Offset: {:010} - {}".format(offset, file_path.stem))
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@ -194,6 +207,7 @@ def pzz_unpack(pzz_path, dest_folder):
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# La taille du fichier étant un multiple de CHUNK_SIZE, on aura complété les 2048 octets finaux avec des 0x00
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offset += file_len
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def pzz_pack(src_path, dest_file):
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# On récupère les fichiers du dossier à compresser
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src_files = listdir(src_path)
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@ -201,39 +215,40 @@ def pzz_pack(src_path, dest_file):
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# On récupère le nombre total de fichiers
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file_count = int(src_files[-1].split("_")[0][0:3]) + 1
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if dest_file != Path('.') :
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if dest_file != Path('.'):
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if dest_file.suffix != ".pzz":
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raise("Invalid file format : dest must be a pzz")
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pzz_path = dest_file
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else :
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else:
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pzz_path = src_path.with_suffix(".pzz")
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print(str(file_count) + " files to pack in " + str(pzz_path))
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with pzz_path.open("wb") as pzz_file :
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with pzz_path.open("wb") as pzz_file:
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# On écrit file_count au début de header
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pzz_file.write(file_count.to_bytes(4, byteorder='big'))
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# On écrit les file_descriptor dans le header du PZZ pour chaque fichier
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for src_file_name in src_files :
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for src_file_name in src_files:
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index = int(src_file_name.split("_")[0][0:3])
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# Compression status permet de verrifier si le fichier doit être finalement compressé ou non
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compression_status = src_file_name.split("_")[0][3:4]
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is_compressed = ( len(src_file_name.split("_compressed")) > 1 )
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is_compressed = (len(src_file_name.split("_compressed")) > 1)
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# Le fichier doit être compressé avant d'être pack
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if compression_status == 'C' and is_compressed == False :
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if compression_status == 'C' and is_compressed is False:
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pass
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# Le fichier doit être décompressé avant d'être pack
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elif compression_status == 'U' and is_compressed == True :
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elif compression_status == 'U' and is_compressed is True:
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pass
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# file_descriptor = arrondi supérieur de la taille / CHUNK_SIZE
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file_descriptor = ceil( (src_path / src_file_name).stat().st_size / CHUNK_SIZE)
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file_descriptor = ceil(
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(src_path / src_file_name).stat().st_size / CHUNK_SIZE)
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# On ajoute le flag de compression au file_descriptor
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if is_compressed :
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if is_compressed:
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file_descriptor |= BIT_COMPRESSION_FLAG
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# On ecrit le file_descriptor
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@ -243,35 +258,45 @@ def pzz_pack(src_path, dest_file):
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pzz_file.seek(CHUNK_SIZE)
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# On écrit tous les fichiers à la suite du header
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for src_file_name in src_files :
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is_compressed = ( len(src_file_name.split("_compressed")) > 1 )
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for src_file_name in src_files:
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is_compressed = (len(src_file_name.split("_compressed")) > 1)
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with (src_path / src_file_name).open("rb") as src_file :
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pzz_file.write( src_file.read() )
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with (src_path / src_file_name).open("rb") as src_file:
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pzz_file.write(src_file.read())
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# Si le fichier n'est pas compressé, on ajoute le padding pour correspondre à un multiple de CHUNK_SIZE
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if not is_compressed and (src_file.tell() % CHUNK_SIZE) > 0:
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pzz_file.write( b"\x00" * (CHUNK_SIZE - (src_file.tell() % CHUNK_SIZE)) )
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pzz_file.write(
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b"\x00" * (CHUNK_SIZE - (src_file.tell() % CHUNK_SIZE)))
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def get_argparser():
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import argparse
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parser = argparse.ArgumentParser(description='PZZ (de)compressor & unpacker - [GameCube] Gotcha Force v' + __version__)
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parser.add_argument('--version', action='version', version='%(prog)s ' + __version__)
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parser = argparse.ArgumentParser(
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description='PZZ (de)compressor & unpacker - [GameCube] Gotcha Force v' + __version__)
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parser.add_argument('--version', action='version',
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version='%(prog)s ' + __version__)
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parser.add_argument('input_path', metavar='INPUT', help='')
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parser.add_argument('output_path', metavar='OUTPUT', help='', nargs='?', default="")
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parser.add_argument('output_path', metavar='OUTPUT',
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help='', nargs='?', default="")
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group = parser.add_mutually_exclusive_group(required=True)
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group.add_argument('-p', '--pack', action='store_true', help="-p source_folder dest_file.pzz(optionnal) : Pack source_folder in new file source_folder.pzz")
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group.add_argument('-u', '--unpack', action='store_true', help='-u source_folder.pzz dest_folder(optionnal) : Unpack the pzz in new folder source_folder')
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group.add_argument('-bp', '--batch-pack', action='store_true', help='-bp source_folder dest_folder(optionnal - if not specified it will pack in source_folder)')
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group.add_argument('-bu', '--batch-unpack', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*.pzz')
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group.add_argument('-p', '--pack', action='store_true',
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help="-p source_folder dest_file.pzz(optionnal) : Pack source_folder in new file source_folder.pzz")
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group.add_argument('-u', '--unpack', action='store_true',
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help='-u source_folder.pzz dest_folder(optionnal) : Unpack the pzz in new folder source_folder')
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group.add_argument('-bp', '--batch-pack', action='store_true',
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help='-bp source_folder dest_folder(optionnal - if not specified it will pack in source_folder)')
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group.add_argument('-bu', '--batch-unpack', action='store_true',
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help='INPUT relative pattern; e.g. AFS_DATA\\*.pzz')
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#group.add_argument('-a', '-aa',action='store_true', help='sha256')
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#group.add_argument('-c', '--compress', action='store_true', help='')
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#group.add_argument('-d', '--decompress', action='store_true', help='Unpacked files from PZZ')
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#group.add_argument('-bc', '--batch-compress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*.bin')
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#group.add_argument('-bd', '--batch-decompress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*_compressed.dat')
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# group.add_argument('-a', '-aa',action='store_true', help='sha256')
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# group.add_argument('-c', '--compress', action='store_true', help='')
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# group.add_argument('-d', '--decompress', action='store_true', help='Unpacked files from PZZ')
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# group.add_argument('-bc', '--batch-compress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*.bin')
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# group.add_argument('-bd', '--batch-decompress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*_compressed.dat')
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return parser
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if __name__ == '__main__':
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args = get_argparser().parse_args()
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@ -318,7 +343,8 @@ if __name__ == '__main__':
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p_output.mkdir(exist_ok=True)
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for folder in listdir(p_input):
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pzz_pack( p_input / folder, p_output / Path(folder).with_suffix(".pzz"))
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pzz_pack(p_input / folder, p_output /
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Path(folder).with_suffix(".pzz"))
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elif args.batch_unpack:
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print("### Batch Unpack")
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p_output.mkdir(exist_ok=True)
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@ -327,6 +353,7 @@ if __name__ == '__main__':
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pzz_unpack(p_input / filename, p_output / Path(filename).stem)
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"""
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Code pour le developement --> pzztool.py -a a
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compare le sha256 de chaque PZZ du dossier pzz et pzz2 puis affiche le nom de fichier en cas de différence
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import hashlib
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for pzz_file in listdir("pzz"):
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