Compress and decompress KicksOnline resources. Requires package: https://gist.github.com/neikeq/211f7826d3589a641c0b#file-bwriter-py

compression.py

import zlib
from bwriter import BinaryWriter


class Compressor:

    header_version = 108311
    header_len = 48

    header = [
        0x40, 0x5C, 0x3A, 0x32, 0x47, 0x21, 0x3F, 0x33, 0x39, 0x51, 0x40, 0x56,
        0x40, 0x4A, 0x40, 0x07, 0x38, 0x30, 0x49, 0x0C, 0x3A, 0x4E, 0x42, 0x45,
        0x40, 0x56, 0x40, 0x4A, 0x40, 0x07, 0x38, 0x30, 0x49, 0x0C, 0xFF, 0xFF
    ]

    def decompress(self, data):
        return zlib.decompress(data[self.header_len:len(data)])

    def compress(self, data):
        result = zlib.compress(data)
        return self.add_header(result, len(data))

    def decompress_file(self, path):
        with open(path, 'rb') as file:
            return self.decompress(file.read())

    def compress_file(self, path):
        with open(path, 'rb') as file:
            return self.compress(file.read())

    def add_header(self, data, orig_len):
        result = BinaryWriter('little')
        result.write_int(self.header_version)
        result.write_int(orig_len)
        result.write_int(len(data))
        result.write_bytes(self.header)
        result.write_bytes(data)
        return result.array()