python 网易云音乐uc缓存转换mp3

前几天帮老爸的导航下载歌曲，发现都要会员，找资源较麻烦，用python写个网易云的缓存转换mp3的程序吧。

转换的根本方法就是对缓存uc文件的数据和0xa3(163)进行异或(^)运算啦。

流程:

1、对缓存文件的数据和0xa3(163)进行异或(^)运算

2、用歌曲ID用网易云提供的API去获取歌曲信息

3、数据保存为mp3文件

 

python版本：python3.8

 

 

代码很简单：

# -*- coding:utf-8 -*-

import os
import re
import requests

UC_PATH = './Cache/'  # 缓存路径 例 D:/CloudMusic/Cache/
MP3_PATH = './'  # 存放歌曲路径

class Transform():
    def do_transform(self):
        files = os.listdir(UC_PATH)
        for file in files:
            if file[-2:] == 'uc':  # 后缀uc结尾为歌曲缓存
                print(file)
                uc_file = open(UC_PATH + file, mode='rb')
                uc_content = uc_file.read()
                mp3_content = bytearray()
                for byte in uc_content:
                    byte ^= 0xa3
                    mp3_content.append(byte)
                song_id = self.get_songid_by_filename(file)
                song_name, singer_name = self.get_song_info(song_id)
                mp3_file_name = MP3_PATH + '%s - %s.mp3' % (singer_name, song_name)
                mp3_file = open(mp3_file_name, 'wb')
                mp3_file.write(mp3_content)
                uc_file.close()
                mp3_file.close()
                print('success %s' % mp3_file_name)

    def get_songid_by_filename(self, file_name):
        match_inst = re.match('\d*', file_name)  # -前面的数字是歌曲ID，例：1347203552-320-0aa1
        if match_inst:
            return match_inst.group()
        return ''

    def get_song_info(self, song_id):
        if not song_id:
            return str(song_id), ''

        try:
            url = 'https://api.imjad.cn/cloudmusic/'  # 请求url例子：https://api.imjad.cn/cloudmusic/?type=detail&id=1347203552
            payload = {'type': 'detail', 'id': song_id}
            reqs = requests.get(url, params=payload)
            jsons = reqs.json()
            song_name = jsons['songs'][0]['name']
            singer = jsons['songs'][0]['ar'][0]['name']
            return song_name, singer
        except:
            return str(song_id), ''

def check_path():
    global UC_PATH, MP3_PATH

    if not os.path.exists(UC_PATH):
        print('缓存路径错误: %s' % UC_PATH)
        return False
    if not os.path.exists(MP3_PATH):
        print('目标路径错误: %s' % MP3_PATH)
        return False

    if UC_PATH[-1] != '/':  # 容错处理 防止绝对路径结尾不是/
        UC_PATH += '/'
    if MP3_PATH[-1] != '/':
        MP3_PATH += '/'
    return True

if __name__ == '__main__':
    if not check_path():
        exit()

    transform = Transform()
    transform.do_transform()

 

以后会再仓库跟进，欢迎star：https://github.com/Grente/cloudMusicTransform