Home > Article > Backend Development > Implement python batch download of free music from NetEase Cloud Music
相关免费学习推荐：python视频教程
运行效果
代码
# -*- coding:utf-8 -*-
import requests, hashlib, sys, click, re, base64, binascii, json, os
from Crypto.Cipher import AES
from http import cookiejar
"""
Website:http://cuijiahua.com
Author:Jack Cui
Refer:https://github.com/darknessomi/musicbox
"""
class Encrypyed():
"""
解密算法
"""
def __init__(self):
self.modulus = '00e0b509f6259df8642dbc35662901477df22677ec152b5ff68ace615bb7b725152b3ab17a876aea8a5aa76d2e417629ec4ee341f56135fccf695280104e0312ecbda92557c93870114af6c9d05c4f7f0c3685b7a46bee255932575cce10b424d813cfe4875d3e82047b97ddef52741d546b8e289dc6935b3ece0462db0a22b8e7'
self.nonce = '0CoJUm6Qyw8W8jud'
self.pub_key = '010001'
# 登录加密算法, 基于https://github.com/stkevintan/nw_musicbox脚本实现
def encrypted_request(self, text):
text = json.dumps(text)
sec_key = self.create_secret_key(16)
enc_text = self.aes_encrypt(self.aes_encrypt(text, self.nonce), sec_key.decode('utf-8'))
enc_sec_key = self.rsa_encrpt(sec_key, self.pub_key, self.modulus)
data = {'params': enc_text, 'encSecKey': enc_sec_key}
return data
def aes_encrypt(self, text, secKey):
pad = 16 - len(text) % 16
text = text + chr(pad) * pad
encryptor = AES.new(secKey.encode('utf-8'), AES.MODE_CBC, b'0102030405060708')
ciphertext = encryptor.encrypt(text.encode('utf-8'))
ciphertext = base64.b64encode(ciphertext).decode('utf-8')
return ciphertext
def rsa_encrpt(self, text, pubKey, modulus):
text = text[::-1]
rs = pow(int(binascii.hexlify(text), 16), int(pubKey, 16), int(modulus, 16))
return format(rs, 'x').zfill(256)
def create_secret_key(self, size):
return binascii.hexlify(os.urandom(size))[:16]
class Song():
"""
歌曲对象，用于存储歌曲的信息
"""
def __init__(self, song_id, song_name, song_num, song_url=None):
self.song_id = song_id
self.song_name = song_name
self.song_num = song_num
self.song_url = '' if song_url is None else song_url
class Crawler():
"""
网易云爬取API
"""
def __init__(self, timeout=60, cookie_path='.'):
self.headers = {
'Accept': '*/*',
'Accept-Encoding': 'gzip,deflate,sdch',
'Accept-Language': 'zh-CN,zh;q=0.8,gl;q=0.6,zh-TW;q=0.4',
'Connection': 'keep-alive',
'Content-Type': 'application/x-www-form-urlencoded',
'Host': 'music.163.com',
'Referer': 'http://music.163.com/search/',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'
}
self.session = requests.Session()
self.session.headers.update(self.headers)
self.session.cookies = cookiejar.LWPCookieJar(cookie_path)
self.download_session = requests.Session()
self.timeout = timeout
self.ep = Encrypyed()
def post_request(self, url, params):
"""
Post请求
:return: 字典
"""
data = self.ep.encrypted_request(params)
resp = self.session.post(url, data=data, timeout=self.timeout)
result = resp.json()
if result['code'] != 200:
click.echo('post_request error')
else:
return result
def search(self, search_content, search_type, limit=9):
"""
搜索API
:params search_content: 搜索内容
:params search_type: 搜索类型
:params limit: 返回结果数量
:return: 字典.
"""
url = 'http://music.163.com/weapi/cloudsearch/get/web?csrf_token='
params = {'s': search_content, 'type': search_type, 'offset': 0, 'sub': 'false', 'limit': limit}
result = self.post_request(url, params)
return result
def search_song(self, song_name, song_num, quiet=True, limit=9):
"""
根据音乐名搜索
:params song_name: 音乐名
:params song_num: 下载的歌曲数
:params quiet: 自动选择匹配最优结果
:params limit: 返回结果数量
:return: Song独享
"""
result = self.search(song_name, search_type=1, limit=limit)
if result['result']['songCount'] <= 0:
click.echo('Song {} not existed.'.format(song_name))
else:
songs = result['result']['songs']
if quiet:
song_id, song_name = songs[0]['id'], songs[0]['name']
song = Song(song_id=song_id, song_name=song_name, song_num=song_num)
return song
def get_song_url(self, song_id, bit_rate=320000):
"""
获得歌曲的下载地址
:params song_id: 音乐ID<int>.
:params bit_rate: {'MD 128k': 128000, 'HD 320k': 320000}
:return: 歌曲下载地址
"""
url = 'http://music.163.com/weapi/song/enhance/player/url?csrf_token='
csrf = ''
params = {'ids': [song_id], 'br': bit_rate, 'csrf_token': csrf}
result = self.post_request(url, params)
# 歌曲下载地址
song_url = result['data'][0]['url']
# 歌曲不存在
if song_url is None:
click.echo('Song {} is not available due to copyright issue.'.format(song_id))
else:
return song_url
def get_song_by_url(self, song_url, song_name, song_num, folder):
"""
下载歌曲到本地
:params song_url: 歌曲下载地址
:params song_name: 歌曲名字
:params song_num: 下载的歌曲数
:params folder: 保存路径
"""
if not os.path.exists(folder):
os.makedirs(folder)
fpath = os.path.join(folder, str(song_num) + '_' + song_name + '.mp3')
if sys.platform == 'win32' or sys.platform == 'cygwin':
valid_name = re.sub(r'[<>:"/\\|?*]', '', song_name)
if valid_name != song_name:
click.echo('{} will be saved as: {}.mp3'.format(song_name, valid_name))
fpath = os.path.join(folder, str(song_num) + '_' + valid_name + '.mp3')
if not os.path.exists(fpath):
resp = self.download_session.get(song_url, timeout=self.timeout, stream=True)
length = int(resp.headers.get('content-length'))
label = 'Downloading {} {}kb'.format(song_name, int(length/1024))
with click.progressbar(length=length, label=label) as progressbar:
with open(fpath, 'wb') as song_file:
for chunk in resp.iter_content(chunk_size=1024):
if chunk:
song_file.write(chunk)
progressbar.update(1024)
class Netease():
"""
网易云音乐下载
"""
def __init__(self, timeout, folder, quiet, cookie_path):
self.crawler = Crawler(timeout, cookie_path)
self.folder = '.' if folder is None else folder
self.quiet = quiet
def download_song_by_search(self, song_name, song_num):
"""
根据歌曲名进行搜索
:params song_name: 歌曲名字
:params song_num: 下载的歌曲数
"""
try:
song = self.crawler.search_song(song_name, song_num, self.quiet)
except:
click.echo('download_song_by_serach error')
# 如果找到了音乐, 则下载
if song != None:
self.download_song_by_id(song.song_id, song.song_name, song.song_num, self.folder)
def download_song_by_id(self, song_id, song_name, song_num, folder='.'):
"""
通过歌曲的ID下载
:params song_id: 歌曲ID
:params song_name: 歌曲名
:params song_num: 下载的歌曲数
:params folder: 保存地址
"""
try:
url = self.crawler.get_song_url(song_id)
# 去掉非法字符
song_name = song_name.replace('/', '')
song_name = song_name.replace('.', '')
self.crawler.get_song_by_url(url, song_name, song_num, folder)
except:
click.echo('download_song_by_id error')
if __name__ == '__main__':
timeout = 60
output = 'Musics'
quiet = True
cookie_path = 'Cookie'
netease = Netease(timeout, output, quiet, cookie_path)
music_list_name = 'music_list.txt'
# 如果music列表存在, 那么开始下载
if os.path.exists(music_list_name):
with open(music_list_name, 'r') as f:
music_list = list(map(lambda x: x.strip(), f.readlines()))
for song_num, song_name in enumerate(music_list):
netease.download_song_by_search(song_name,song_num + 1)
else:
click.echo('music_list.txt not exist.')相关免费学习推荐：php编程（视频）
The above is the detailed content of Implement python batch download of free music from NetEase Cloud Music. For more information, please follow other related articles on the PHP Chinese website!