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Python逆向爬虫入门教程: 酷狗音乐加密参数signature逆向解析

发布时间 2024-01-13 13:25:47作者: 轻松学Python

数据来源分析?

网站链接: aHR0cHM6Ly93d3cua3Vnb3UuY29tLw==

歌曲下载 signature ?

  1. 正常抓包分析找到音频链接地址

     

  2. 通过链接搜索找到对应的数据包位置

     

     

  3. 分析 signature 参数加密位置

 

 通过 s 列表 合并成字符串, 传入d函数中进行加密, 返回32位, 还是比较明显的MD5加密, 相当于请求参数除了signature 以外, 在头尾加了一段内容 "NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt" 可以直接通过python代码实现不需要额外扣代码

歌曲下载 signature: Python代码实现?

import hashlib


def download(date_time, music_id):
    """
    :param date_time: 时间戳 1704522723326
    :param music_id: 歌曲ID j58xpcd
    :return: signature 加密参数
    """
    s = [
        "NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt",
        "appid=1014",
        f"clienttime={date_time}", # 时间戳
        "clientver=20000",
        "dfid=11S5Hd0E3dhq3jHxZ90dzFYU",
        f"encode_album_audio_id={music_id}",  # 歌曲ID
        "mid=8b5710fdab09aea0e4649de3e430ad23",
        "platid=4",
        "srcappid=2919",
        "token=",
        "userid=0",
        "uuid=8b5710fdab09aea0e4649de3e430ad23",
        "NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt"
    ]
    string = "".join(s)
    MD5 = hashlib.md5()
    MD5.update(string.encode('utf-8'))
    signature = MD5.hexdigest()
    return signature

 

歌曲搜索 signature ?

歌曲搜索主要是获取歌曲的ID, 同样也是MD5加密的方式, 只是传入的参数不一样
 

 

歌曲搜索 signature: Python代码实现?

def search(date_time, keyword):
    """
    :param date_time: 时间戳 1704522723326
    :param keyword: 搜索关键词 许嵩
    :return:
    """
    s = [
        "NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt",
        "appid=1014",
        "bitrate=0",
        "callback=callback123",
        f"clienttime={date_time}", # 时间戳
        "clientver=1000",
        "dfid=11S5Hd0E3dhq3jHxZ90dzFYU",
        "filter=10",
        "inputtype=0",
        "iscorrection=1",
        "isfuzzy=0",
        f"keyword={keyword}",
        "mid=8b5710fdab09aea0e4649de3e430ad23",
        "page=1",
        "pagesize=30",
        "platform=WebFilter",
        "privilege_filter=0",
        "srcappid=2919",
        "token=",
        "userid=0",
        "uuid=8b5710fdab09aea0e4649de3e430ad23",
        "NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt"
    ]
    string = "".join(s)
    MD5 = hashlib.md5()
    MD5.update(string.encode('utf-8'))
    signature = MD5.hexdigest()
    return signature

 

然后整合一下代码, 实现一个搜索下载的功能?

import hashlib
import time
import requests
import re
import json
import prettytable as pt


def md5_hash(date, keyword):
    text = [
        'NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt',
        'appid=1014',
        'bitrate=0',
        'callback=callback123',
        f'clienttime={date}',
        'clientver=1000',
        'dfid=11S5Hd0E3dhq3jHxZ90dzFYU',
        'filter=10',
        'inputtype=0',
        'iscorrection=1',
        'isfuzzy=0',
        f'keyword={keyword}',
        'mid=8b5710fdab09aea0e4649de3e430ad23',
        'page=1',
        'pagesize=30',
        'platform=WebFilter',
        'privilege_filter=0',
        'srcappid=2919',
        'token=',
        'userid=0',
        'uuid=8b5710fdab09aea0e4649de3e430ad23',
        'NVPh5oo715z5DIWAeQlhMDsWXXQV4hwt'
    ]
    string = ''.join(text)
    # 创建 MD5 哈希对象
    md5 = hashlib.md5()
    # 更新哈希对象的内容
    md5.update(string.encode('utf-8'))
    # 更新哈希对象的内容
    signature = md5.hexdigest()
    print(signature)
    return signature


def save(music_id):
    link = 'https://wwwapi.kugou.com/yy/index.php'
    params = {
        'r': 'play/getdata',
        # 'callback': 'jQuery19105617303032764249_1693890961892',
        'dfid': '11S5Hd0E3dhq3jHxZ90dzFYU',
        'appid': '1014',
        'mid': '8b5710fdab09aea0e4649de3e430ad23',
        'platid': '4',
        'encode_album_audio_id': music_id,
        '_': '1693890961893',
    }
    link_data = requests.get(url=link, params=params, headers=headers).json()
    play_url = link_data['data']['play_url']
    audio_name = link_data['data']['audio_name']
    name = re.sub(r'[\\/:"?*<>|]', '', audio_name)
    content = requests.get(url=play_url, headers=headers).content
    with open('music\\' + name + '.mp3', mode='wb') as f:
        f.write(content)



now_time = int(time.time() * 1000)
keyword = input('请输入歌手名字 / 歌曲: ')
signature = md5_hash(now_time, keyword)
url = 'https://complexsearch.kugou.com/v2/search/song'
data = {
    'callback': 'callback123',
    'srcappid': '2919',
    'clientver': '1000',
    'clienttime': now_time,
    'mid': '8b5710fdab09aea0e4649de3e430ad23',
    'uuid': '8b5710fdab09aea0e4649de3e430ad23',
    'dfid': '11S5Hd0E3dhq3jHxZ90dzFYU',
    'keyword': keyword,
    'page': '1',
    'pagesize': '30',
    'bitrate': '0',
    'isfuzzy': '0',
    'inputtype': '0',
    'platform': 'WebFilter',
    'userid': '0',
    'iscorrection': '1',
    'privilege_filter': '0',
    'filter': '10',
    'token': '',
    'appid': '1014',
    'signature': signature,
}
headers = {
    'Referer': 'https://www.kugou.com/',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36',
}
response = requests.get(url=url, params=data, headers=headers)
html_data = re.findall('callback123\((.*)\)', response.text)[0].replace(')', '')

tb = pt.PrettyTable()
tb.field_names = ['序号', '歌手', '歌名', '专辑', 'ID']
lis = []
num = 1
json_data = json.loads(html_data)
for index in json_data['data']['lists']:
    SingerName = index['SingerName']  # 歌手
    SongName = index['SongName']  # 歌名
    AlbumName = index['AlbumName']  # 专辑
    SongID = index['EMixSongID']  # ID
    dit = {
        '歌手': SingerName,
        '歌名': SongName,
        '专辑': AlbumName,
        'ID': SongID,
    }
    tb.add_row([num, SingerName, SongName, AlbumName, SongID])
    lis.append(dit)
    num += 1

print(tb)
page = input('请输入你要下载的歌曲的序号: <全部下载:0> ')
try:
    if page == '0':
        for li in lis:
            save(music_id=li['SongID'])
    else:
        save(music_id=lis[int(page)-1]['ID'])
except Exception as e:
    print('输入有问题', e)
# 我还录制了视频进行详细讲解，都放在这个扣裙了 708525271

 

 

同样也可以结合gui实现一个下载的软件