jsc和luac文件 xxtea 解密.

 # -*- coding: utf-8 -*-
 import xxtea
 import os

 src = "./assets/src"
 dst = "./assets/srcd"

 xxtea_sign = ""
 xxtea_key = "fc9853c5-78f9-55"
 xxtea_sign_len = len(xxtea_sign)
 xxtea_key_len = len(xxtea_key)

 files = []
 exts = [".luac",".jsc"]

 def deep_iterate_dir(rootDir):
     for lists in os.listdir(rootDir):
         path = os.path.join(rootDir, lists)
         if os.path.isdir(path):
            deep_iterate_dir(path)
         elif os.path.isfile(path):
             ext = os.path.splitext(path)[1]
             if ext in exts:
                 files.append(path)

 # 处理一个文件
 def handle_file(file):
     with open(file,"rb") as fd:
         con = fd.read()
         c2 = xxtea.decrypt(con, xxtea_key,padding=False)
         fd.close()
         return c2

 # 保存文件
 def save_file(file,outData):
     dst_rootpath = os.path.split(file)[0]
     try:
         # print "creating dir (%s)" % (dst_rootpath)
         os.makedirs(dst_rootpath)
     except OSError:
         if os.path.exists(dst_rootpath) == False:
             # There was an error on creation, so make sure we know about it
             raise Exception("Error: create directory %s failed." % dst_rootpath)

     if file.endswith("c"):
         file = file[:-1]
     with open(file,"wb") as fd:
         con = fd.write(outData)
         fd.close()

 # 获取绝对路径
 def normalize_path(i):
     tmp = os.path.normpath(i)
     if not os.path.isabs(tmp):
         tmp = os.path.abspath(tmp)
     return tmp

 # 获取相对路径
 def get_relative_path(luafile):
     try:
         pos = luafile.index(src)
         return luafile[len(src)+1:]
     except ValueError:
         raise Exception("get_relative_path error")

 def handle_all_files():
     for file in files:
         con = handle_file(file)
         if con:
             path = os.path.join(dst,get_relative_path(file))
             save_file(path,con)
         else:
             print ("handle %s file error" % file)

 def main():
     global src
     global dst
     src = normalize_path(src)
     dst = normalize_path(dst)

     if not os.path.exists(dst):
         os.makedirs(dst)

     deep_iterate_dir(src)
     handle_all_files()

 if __name__ == "__main__":
     main()