前言

本文背景

最近对音乐比较有需求，想着用自己学的python来实现一下下载需求，
真的是拿着锤子在满世界找钉子，**文末附全部代码**

声明：

 本文仅作技术交流，禁止用于其他非法途径本文2023年9月15日是可用的，但是爬虫与反爬一直在博弈哦

1、寻找播放链接

首先我们要知道，只要能够拿到音乐播放的链接，再构造请求就能实现下载，那我们来找找音乐链接在哪吧，打开浏览器的检查，找啊找，终于找到你了，我们按照图上的关键字进行搜索很快就能找到播放地址

既然播放地址在返回的包里，那我们只要模拟发送请求就能拿到这个包，进而实现下载了

2、分析请求参数

接下来我们来看看请求参数，经过反复的测试，发现其中mid、、及encode_album_audio_id是会变的，其中encode_album_audio_id是音乐的id，“”是时间戳，mid是经过加密的一串字符

（一） 如何获取encode_album_audio_id参数

这个参数很好获取，在歌曲页、榜单页里按照图片上的步骤就能找到

（二）如何生成时间戳‘_'参数

import timetimestamp = int(time.time() * 1000)
_ = str(timestamp)

（三）如何生成mid参数

在逆向方面我用的比较少，所以存在许多不足，借鉴了一下其他大神的博客，这个参数是可以通过python直接生成的，省去了扣js代码的麻烦，真是太赞了，此处借鉴了不想掉头发大神的文章，想了解分析过程的可以去这里，博客传送门

import random,hashlibdef gen_md5(word):word = ''.join([x for x in word])encode_word = word.encode('utf-8')return hashlib.md5(encode_word).hexdigest()
def guid():num = 1 + random.random()res = hex(int(65536 * num))[3:]return resdef get_GUID():GUID = guid() + guid() + "-" + guid() + "-" + guid() + "-" + guid() + "-" + guid() + guid() + guid()return GUID
# 获取mid参数
def get_mid():GUID = get_GUID()mid = gen_md5(GUID)return mid

到这里我们的请求参数就已经全部实现了

3、构造请求参数，获取下载链接

接下来我们就开始模拟请求了，检验一下我们的代码是否能跑

# 这是一个获取音乐播放链接的函数
def get_Playurl(song_id):timestamp = int(time.time() * 1000)dfid = '-'mid = get_mid()encode_album_audio_id = song_id# headers = {#     "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",# }url = '音乐url'try:r = requests.get(url, headers=get_headers())r.encoding = r.apparent_encodinghead = len('jQuery191089893143860232_1694668397872(')data = json.loads(r.text[head:-2])song_name = data['data']['song_name']author_name = data['data']['author_name']song_name = f'{song_name}-{author_name}'play_url = data['data']['play_url']print(f'成功获取:{song_name},{play_url}')return song_name,play_urlexcept:print('Error:获取play_url,song_name出错，请检查各项请求参数是否有更新')passreturn song_name, play_url

4、下载

下载部分也很简单，需要把自己的cookie传进去就是了，cookie如何获取呢

这是图中输入的代码

javascript:alert(document.cookie)

下载函数

# 这是一个下载函数，提供歌曲id就能下载，
#使用前记得先把文件保存位置改成你想要保存的位置，或者新建一个music文件夹def Download(song_id):song_name,play_url = get_Playurl(song_id)with open(f'./music/{song_name}.mp3','wb') as file:try:r = requests.get(play_url,headers=get_headers())if r.status_code == 200:file.write(r.content)print(f'{song_name}  下载成功')except:print(f'Error：{song_name}  下载失败，请检查网络或请求网址是否正确')

UserAgent.py

通过随机请求头实现简单的反爬

import randomuser_agent = ["Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50","Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50","Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0","Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; InfoPath.3; rv:11.0) like Gecko","Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)","Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)","Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1","Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1","Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; en) Presto/2.8.131 Version/11.11","Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.11","Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_0) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Maxthon 2.0)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler 4.0)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; The World)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SE 2.X MetaSr 1.0; SE 2.X MetaSr 1.0; .NET CLR 2.0.50727; SE 2.X MetaSr 1.0)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Avant Browser)","Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)","Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5","Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5","Mozilla/5.0 (iPad; U; CPU OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5","Mozilla/5.0 (Linux; U; Android 2.3.7; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1","MQQBrowser/26 Mozilla/5.0 (Linux; U; Android 2.3.7; zh-cn; MB200 Build/GRJ22; CyanogenMod-7) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1","Opera/9.80 (Android 2.3.4; Linux; Opera Mobi/build-1107180945; U; en-GB) Presto/2.8.149 Version/11.10","Mozilla/5.0 (Linux; U; Android 3.0; en-us; Xoom Build/HRI39) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13","Mozilla/5.0 (BlackBerry; U; BlackBerry 9800; en) AppleWebKit/534.1+ (KHTML, like Gecko) Version/6.0.0.337 Mobile Safari/534.1+","Mozilla/5.0 (hp-tablet; Linux; hpwOS/3.0.0; U; en-US) AppleWebKit/534.6 (KHTML, like Gecko) wOSBrowser/233.70 Safari/534.6 TouchPad/1.0","Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-1/20.0.019; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.18124","Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; Titan)","UCWEB7.0.2.37/28/999","NOKIA5700/ UCWEB7.0.2.37/28/999","Openwave/ UCWEB7.0.2.37/28/999","Mozilla/4.0 (compatible; MSIE 6.0; ) Opera/UCWEB7.0.2.37/28/999",# iPhone 6"Mozilla/6.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/8.0 Mobile/10A5376e Safari/8536.25",# 新版移动ua"Mozilla/5.0 (Linux;u;Android 4.2.2;zh-cn;) AppleWebKit/534.46 (KHTML,like Gecko) Version/5.1 Mobile Safari/10600.6.3 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)"
]# 随机获取一个请求头
def get_headers():return {'User-Agent': random.choice(user_agent),}

5、成果展示

6、全部代码

百度网盘
提取码:e8s9

7、写在最后

使用指南：

拿到代码后需要做哪些修改？cookie改成你的
文件下载位置改为你的或者新建music文件夹
自己找榜单之后才能批量下载

感谢你看到了最后，我们下次见