python视频教程栏目介绍实现下载免费音乐

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.

: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)