我要评论完整代码如下：
from glob import glob
import os
from tqdm import tqdm
def get_sign(dat_r):
signatures = [(0x89, 0x50, 0x4e), (0x47, 0x49, 0x46), (0xff, 0xd8, 0xff)]
mats = [".png", ".gif", ".jpg"]
for now in dat_r:
for j, xor in enumerate(signatures):
res = [nowbyte ^ xor_byte for nowbyte,
xor_byte in zip(now[:3], xor)]
if res[0] == res[1] == res[2]:
return res[0], mats[j]
else:
raise exception("no valid signature is found")
def imagedecode(file, root_path, dest_path=none):
dat_r = open(file, "rb")
try:
sign, mat = get_sign(dat_r)
dat_r.seek(0)
data = bytes(byte ^ sign for byte in dat_r.read())
relative_path = os.path.relpath(file, root_path)
if dest_path is none:
dest_path = os.path.join(root_path, "covertimage")
dest = os.path.join(dest_path,
relative_path.replace(".dat", mat))
os.makedirs(os.path.dirname(dest), exist_ok=true)
with open(dest, "wb") as write:
write.write(data)
finally:
dat_r.close()
def main(into_path, out_path=none):
for file in tqdm(glob(os.path.join(into_path, "**", "*.dat"), recursive=true)):
imagedecode(file, into_path, out_path)
if __name__ == '__main__':
into_path = r"d:\tmp\wx_icon_dat"
# out_path = r"d:\tmp\wx_icon_dat"
main(into_path, out_path=none)
支持递归处理，不指定结果文件夹时，结果将写入into_path+"covertimage"目录下。
还原示例：
发表评论