使用python将微信image下.dat文件解密为.png的方法

import os

def imageDecode(dat_dir,dat_file_name):
 dat_read = open(dat_dir, "rb")
 if not os.path.exists(target_path):
 os.makedirs(target_path)
 out=target_path+"\\"+dat_file_name+".png"
 png_write = open(out, "wb")
 for now in dat_read:
 for nowByte in now:
 newByte = nowByte ^ xor_value
 png_write.write(bytes([newByte]))
 dat_read.close()
 png_write.close()

def findFile(dat_path):
 fsinfo = os.listdir(dat_path)
 for dat_file_name in fsinfo:
 temp_path = os.path.join(dat_path, dat_file_name)
 if not os.path.isdir(temp_path):
 #print('文件路径: {}' .format(temp_path))
 imageDecode(temp_path,dat_file_name)
 else:
 pass
  
if __name__=='__main__':

 # 修改.dat文件的存放路径
 dat_path = r'F:\Users\Tencent Files\WeChat Files\wxid\FileStorage\Image\2020-04'
 
 # 修改转换成png图片后的存放路径
 target_path = r'F:\Users\Tencent Files\WeChat Files\image'
 
 # 修改加密的异或值,比如说我的异或值最后两位是B2，则xor_value = 0xB2，0x表示16进制
 xor_value = 0xB2
 
 findFile(dat_path)
 print("end")