diff --git a/pzztool.py b/pzztool.py index 210993f..843e8cb 100644 --- a/pzztool.py +++ b/pzztool.py @@ -10,6 +10,10 @@ __license__ = "MIT" __status__ = "developpement" +# Pour plus d'informations sur le format PZZ : +# http://virtualre.rf.gd/index.php/PZZ_(Gotcha_Force) + + BIT_COMPRESSION_FLAG = 0x40000000 FILE_LENGTH_MASK = 0x3FFFFFFF CHUNK_SIZE = 0x800 @@ -139,10 +143,8 @@ def pzz_compress(b): def pzz_unpack(pzz_path, dest_folder): - # Script BMS pour les pzz de ps2 (GioGio's adventure) -> https://zenhax.com/viewtopic.php?f=9&t=8724&p=39437#p39437 if pzz_path.suffix != ".pzz": - print("WARNING - Unpack : Invalid file format '" + pzz_path.suffix + - "'; it should be .pzz file format") + print("WARNING - Unpack : Invalid file format '" + pzz_path.suffix + "'; it should be .pzz file format") if dest_folder != Path('.'): unpacked_pzz_path = dest_folder @@ -156,8 +158,7 @@ def pzz_unpack(pzz_path, dest_folder): file_count, = unpack(">I", pzz_file.read(4)) # files_descriptors reçoit un tuple avec l'ensemble des descripteurs de fichiers (groupes d'uint32 big-endian) - files_descriptors = unpack(">{}I".format( - file_count), pzz_file.read(file_count * 4)) + files_descriptors = unpack(f">{file_count}I", pzz_file.read(file_count * 4)) print("File count:", file_count) @@ -181,8 +182,7 @@ def pzz_unpack(pzz_path, dest_folder): file_len = file_descriptor * CHUNK_SIZE # On forme le nom du nouveau fichier que l'on va extraire - filename = "{:03}{}_{}".format( - index, compression_status, pzz_path.stem) + filename = "{:03}{}_{}".format(index, compression_status, pzz_path.stem) file_path = (unpacked_pzz_path / filename).with_suffix(".dat") print("Offset: {:010} - {}".format(offset, file_path.stem)) @@ -210,7 +210,7 @@ def pzz_pack(src_path, dest_file): src_files = listdir(src_path) # On récupère le nombre total de fichiers - file_count = int(src_files[-1].split("_")[0][0:3]) + 1 + file_count = int(src_files[-1][0:3]) + 1 if dest_file != Path('.'): if dest_file.suffix != ".pzz": @@ -227,14 +227,13 @@ def pzz_pack(src_path, dest_file): # On écrit les file_descriptor dans le header du PZZ pour chaque fichier for src_file_name in src_files: - index = int(src_file_name.split("_")[0][0:3]) + index = int(src_file_name[0:3]) # Compression status permet de verrifier si le fichier doit être finalement compressé ou non - compression_status = src_file_name.split("_")[0][3:4] + compression_status = src_file_name[3:4] # file_descriptor = arrondi supérieur de la taille / CHUNK_SIZE - file_descriptor = ceil( - (src_path / src_file_name).stat().st_size / CHUNK_SIZE) + file_descriptor = ceil((src_path / src_file_name).stat().st_size / CHUNK_SIZE) # On ajoute le flag de compression au file_descriptor if compression_status == 'C': @@ -248,8 +247,8 @@ def pzz_pack(src_path, dest_file): # On écrit tous les fichiers à la suite du header for src_file_name in src_files: - is_compressed = (len(src_file_name.split("_compressed")) > 1) - compression_status = src_file_name.split("_")[0][3:4] + is_compressed = "_compressed" in src_file_name + compression_status = src_file_name[3:4] with (src_path / src_file_name).open("rb") as src_file: # Le fichier doit être compressé avant d'être pack @@ -263,8 +262,7 @@ def pzz_pack(src_path, dest_file): # Si le fichier n'est pas compressé, on ajoute le padding pour correspondre à un multiple de CHUNK_SIZE if compression_status == 'C' and (pzz_file.tell() % CHUNK_SIZE) > 0: - pzz_file.write( - b"\x00" * (CHUNK_SIZE - (pzz_file.tell() % CHUNK_SIZE))) + pzz_file.write(b"\x00" * (CHUNK_SIZE - (pzz_file.tell() % CHUNK_SIZE))) def get_argparser(): @@ -280,12 +278,11 @@ def get_argparser(): group.add_argument('-u', '--unpack', action='store_true', help='-u source_folder.pzz dest_folder(optionnal) : Unpack the pzz in new folder source_folder') 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)') group.add_argument('-bu', '--batch-unpack', action='store_true', help='-bu source_folder dest_folder(optionnal - if not specified it will unpack in source_folder)') - # group.add_argument('-a', '-aa', action='store_true', help='sha256') - group.add_argument('-c', '--compress', action='store_true', help='') - group.add_argument('-d', '--decompress', action='store_true', help='Unpacked files from PZZ') + group.add_argument('-c', '--compress', action='store_true', help='') + group.add_argument('-d', '--decompress', action='store_true', help='Unpacked files from PZZ') group.add_argument('-bc', '--batch-compress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*.bin') group.add_argument('-bd', '--batch-decompress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*_compressed.dat') - group.add_argument('-di', '--disable-ignore', action='store_true', help="Disable filename ignore") + group.add_argument('-di', '--disable-ignore', action='store_true', help="Disable filename ignore") return parser @@ -308,8 +305,7 @@ if __name__ == '__main__': if (not args.disable_ignore) and ("_uncompressed" in filename): if args.verbose: print(f"Compressing {filename}") - recomp_filename = filename.replace( - "_uncompressed", "_recompressed") + recomp_filename = filename.replace("_uncompressed", "_recompressed") uncompressed = open(path.join(p_input, filename), 'rb') recompressed = open(path.join(p_output, filename), 'wb') @@ -325,8 +321,7 @@ if __name__ == '__main__': for filename in listdir(p_input): if (not args.disable_ignore) and ("_compressed" in filename): print(f"Decompressing {filename}") - uncomp_filename = filename.replace( - "_compressed", "_uncompressed") + uncomp_filename = filename.replace("_compressed", "_uncompressed") compressed = open(path.join(p_input, filename), 'rb') uncompressed = open(path.join(p_output, uncomp_filename), 'wb') @@ -346,21 +341,10 @@ if __name__ == '__main__': p_output.mkdir(exist_ok=True) for folder in listdir(p_input): - pzz_pack(p_input / folder, p_output / - Path(folder).with_suffix(".pzz")) + pzz_pack(p_input / folder, p_output / Path(folder).with_suffix(".pzz")) elif args.batch_unpack: print("### Batch Unpack") p_output.mkdir(exist_ok=True) for filename in listdir(p_input): pzz_unpack(p_input / filename, p_output / Path(filename).stem) - - """ - Code pour le developement --> pzztool.py -a a - compare le sha256 de chaque PZZ du dossier pzz et pzz2 puis affiche le nom de fichier en cas de différence - import hashlib - for pzz_file in listdir("pzz"): - with open("pzz/"+pzz_file, "rb") as f1, open("pzz2/"+pzz_file, "rb") as f2: - if hashlib.sha256( f1.read() ).hexdigest() != hashlib.sha256( f2.read() ).hexdigest() : - print(pzz_file) - """