Python版QQ音乐sign加密

qqMusicSign.py

#encoding = utf-8
import re
import base64
from hashlib import md5

headMap = [21, 4, 9, 26, 16, 20, 27, 30]
middleMap = [212, 45, 80, 68, 195, 163, 163, 203, 157, 220, 254, 91, 204, 79, 104, 6]
tailMap = [18, 11, 3, 2, 1, 7, 6, 25]

def sign(data):
    '''zza + 随机12-16个字符 + md5('CJBPACrRuNy7'+data)
    sign = 'zzaffffffffffff' + md5(b'CJBPACrRuNy7' + data.encode()).hexdigest()
    '''
    hexmd5 = md5(data.encode()).hexdigest()
    middle = []
    for i in range(0, 16):
        middle.append(int(hexmd5[2*i] + hexmd5[2*i+1], 16))
    middle = list(map(lambda x, y: x ^ y, middle, middleMap))
    sign = base64.b64encode(bytearray(middle))
    sign = re.sub(r'[+/=]', '', sign.decode())
    sign = 'zzb' + ''.join(hexmd5[x] for x in headMap) + sign + ''.join(hexmd5[x] for x in tailMap)
    return sign.lower()


if __name__ == '__main__':
    data = '{"comm":{"cv":4747474,"ct":24,"format":"json","notice":0,"platform":"yqq.json","needNewCode":1,"uin":0,"g_tk_new_20200303":5381},"req_1":{"method":"GetSingerSongList","param":{"singerMid":"0016HGCv3wD5bJ","order":1,"begin":0,"num":10},"module":"musichall.song_list_server"}}'
    print(sign(data))