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https://github.com/ytdl-org/youtube-dl.git
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[netease] Get netease music download url through player api (#31235)
* remove unplayable song from test * compatible with python 2 * using standard User_Agent, fix imports * use hash instead of long description * fix lint * fix hash
This commit is contained in:
Xie Yanbo
GitHub
parent
11b284c81f
commit
c91cbf6072
3 changed files with 128 additions and 39 deletions
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@ -8,7 +8,7 @@ import sys
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import unittest
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from youtube_dl.aes import aes_decrypt, aes_encrypt, aes_cbc_decrypt, aes_cbc_encrypt, aes_decrypt_text
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from youtube_dl.aes import aes_decrypt, aes_encrypt, aes_cbc_decrypt, aes_cbc_encrypt, aes_decrypt_text, aes_ecb_encrypt
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from youtube_dl.utils import bytes_to_intlist, intlist_to_bytes
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import base64
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@ -58,6 +58,13 @@ class TestAES(unittest.TestCase):
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decrypted = (aes_decrypt_text(encrypted, password, 32))
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self.assertEqual(decrypted, self.secret_msg)
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def test_ecb_encrypt(self):
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data = bytes_to_intlist(self.secret_msg)
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encrypted = intlist_to_bytes(aes_ecb_encrypt(data, self.key))
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self.assertEqual(
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encrypted,
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b'\xaa\x86]\x81\x97>\x02\x92\x9d\x1bR[[L/u\xd3&\xd1(h\xde{\x81\x94\xba\x02\xae\xbd\xa6\xd0:')
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if __name__ == '__main__':
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unittest.main()
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@ -8,6 +8,18 @@ from .utils import bytes_to_intlist, intlist_to_bytes
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BLOCK_SIZE_BYTES = 16
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def pkcs7_padding(data):
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"""
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PKCS#7 padding
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@param {int[]} data cleartext
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@returns {int[]} padding data
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"""
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remaining_length = BLOCK_SIZE_BYTES - len(data) % BLOCK_SIZE_BYTES
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return data + [remaining_length] * remaining_length
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def aes_ctr_decrypt(data, key, counter):
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"""
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Decrypt with aes in counter mode
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@ -76,8 +88,7 @@ def aes_cbc_encrypt(data, key, iv):
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previous_cipher_block = iv
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for i in range(block_count):
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block = data[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES]
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remaining_length = BLOCK_SIZE_BYTES - len(block)
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block += [remaining_length] * remaining_length
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block = pkcs7_padding(block)
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mixed_block = xor(block, previous_cipher_block)
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encrypted_block = aes_encrypt(mixed_block, expanded_key)
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@ -88,6 +99,28 @@ def aes_cbc_encrypt(data, key, iv):
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return encrypted_data
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def aes_ecb_encrypt(data, key):
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"""
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Encrypt with aes in ECB mode. Using PKCS#7 padding
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@param {int[]} data cleartext
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@param {int[]} key 16/24/32-Byte cipher key
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@returns {int[]} encrypted data
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"""
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expanded_key = key_expansion(key)
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block_count = int(ceil(float(len(data)) / BLOCK_SIZE_BYTES))
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encrypted_data = []
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for i in range(block_count):
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block = data[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES]
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block = pkcs7_padding(block)
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encrypted_block = aes_encrypt(block, expanded_key)
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encrypted_data += encrypted_block
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return encrypted_data
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def key_expansion(data):
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"""
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Generate key schedule
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@ -1,20 +1,31 @@
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# coding: utf-8
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from __future__ import unicode_literals
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from hashlib import md5
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from base64 import b64encode
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from binascii import hexlify
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from datetime import datetime
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from hashlib import md5
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from random import randint
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import json
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import re
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import time
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from .common import InfoExtractor
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from ..aes import aes_ecb_encrypt, pkcs7_padding
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from ..compat import (
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compat_urllib_parse_urlencode,
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compat_str,
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compat_itertools_count,
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)
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from ..utils import (
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sanitized_Request,
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ExtractorError,
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bytes_to_intlist,
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float_or_none,
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int_or_none,
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intlist_to_bytes,
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sanitized_Request,
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std_headers,
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try_get,
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)
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@ -35,32 +46,85 @@ class NetEaseMusicBaseIE(InfoExtractor):
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result = b64encode(m.digest()).decode('ascii')
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return result.replace('/', '_').replace('+', '-')
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@classmethod
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def make_player_api_request_data_and_headers(cls, song_id, bitrate):
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KEY = b'e82ckenh8dichen8'
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URL = '/api/song/enhance/player/url'
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now = int(time.time() * 1000)
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rand = randint(0, 1000)
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cookie = {
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'osver': None,
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'deviceId': None,
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'appver': '8.0.0',
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'versioncode': '140',
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'mobilename': None,
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'buildver': '1623435496',
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'resolution': '1920x1080',
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'__csrf': '',
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'os': 'pc',
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'channel': None,
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'requestId': '{0}_{1:04}'.format(now, rand),
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}
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request_text = json.dumps(
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{'ids': '[{0}]'.format(song_id), 'br': bitrate, 'header': cookie},
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separators=(',', ':'))
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message = 'nobody{0}use{1}md5forencrypt'.format(
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URL, request_text).encode('latin1')
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msg_digest = md5(message).hexdigest()
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data = '{0}-36cd479b6b5-{1}-36cd479b6b5-{2}'.format(
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URL, request_text, msg_digest)
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data = pkcs7_padding(bytes_to_intlist(data))
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encrypted = intlist_to_bytes(aes_ecb_encrypt(data, bytes_to_intlist(KEY)))
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encrypted_params = hexlify(encrypted).decode('ascii').upper()
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cookie = '; '.join(
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['{0}={1}'.format(k, v if v is not None else 'undefined')
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for [k, v] in cookie.items()])
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headers = {
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'User-Agent': std_headers['User-Agent'],
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'Content-Type': 'application/x-www-form-urlencoded',
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'Referer': 'https://music.163.com',
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'Cookie': cookie,
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}
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return ('params={0}'.format(encrypted_params), headers)
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def _call_player_api(self, song_id, bitrate):
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url = 'https://interface3.music.163.com/eapi/song/enhance/player/url'
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data, headers = self.make_player_api_request_data_and_headers(song_id, bitrate)
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try:
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return self._download_json(
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url, song_id, data=data.encode('ascii'), headers=headers)
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except ExtractorError as e:
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if type(e.cause) in (ValueError, TypeError):
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# JSON load failure
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raise
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except Exception:
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pass
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return {}
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def extract_formats(self, info):
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formats = []
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song_id = info['id']
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for song_format in self._FORMATS:
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details = info.get(song_format)
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if not details:
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continue
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song_file_path = '/%s/%s.%s' % (
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self._encrypt(details['dfsId']), details['dfsId'], details['extension'])
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# 203.130.59.9, 124.40.233.182, 115.231.74.139, etc is a reverse proxy-like feature
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# from NetEase's CDN provider that can be used if m5.music.126.net does not
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# work, especially for users outside of Mainland China
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# via: https://github.com/JixunMoe/unblock-163/issues/3#issuecomment-163115880
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for host in ('http://m5.music.126.net', 'http://115.231.74.139/m1.music.126.net',
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'http://124.40.233.182/m1.music.126.net', 'http://203.130.59.9/m1.music.126.net'):
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song_url = host + song_file_path
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bitrate = int_or_none(details.get('bitrate')) or 999000
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data = self._call_player_api(song_id, bitrate)
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for song in try_get(data, lambda x: x['data'], list) or []:
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song_url = try_get(song, lambda x: x['url'])
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if self._is_valid_url(song_url, info['id'], 'song'):
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formats.append({
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'url': song_url,
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'ext': details.get('extension'),
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'abr': float_or_none(details.get('bitrate'), scale=1000),
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'abr': float_or_none(song.get('br'), scale=1000),
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'format_id': song_format,
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'filesize': details.get('size'),
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'asr': details.get('sr')
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'filesize': int_or_none(song.get('size')),
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'asr': int_or_none(details.get('sr')),
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})
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break
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return formats
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@classmethod
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@ -79,30 +143,16 @@ class NetEaseMusicIE(NetEaseMusicBaseIE):
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_VALID_URL = r'https?://music\.163\.com/(#/)?song\?id=(?P<id>[0-9]+)'
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_TESTS = [{
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'url': 'http://music.163.com/#/song?id=32102397',
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'md5': 'f2e97280e6345c74ba9d5677dd5dcb45',
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'md5': '3e909614ce09b1ccef4a3eb205441190',
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'info_dict': {
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'id': '32102397',
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'ext': 'mp3',
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'title': 'Bad Blood (feat. Kendrick Lamar)',
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'title': 'Bad Blood',
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'creator': 'Taylor Swift / Kendrick Lamar',
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'upload_date': '20150517',
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'timestamp': 1431878400,
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'description': 'md5:a10a54589c2860300d02e1de821eb2ef',
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'upload_date': '20150516',
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'timestamp': 1431792000,
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'description': 'md5:25fc5f27e47aad975aa6d36382c7833c',
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},
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'skip': 'Blocked outside Mainland China',
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}, {
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'note': 'No lyrics translation.',
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'url': 'http://music.163.com/#/song?id=29822014',
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'info_dict': {
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'id': '29822014',
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'ext': 'mp3',
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'title': '听见下雨的声音',
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'creator': '周杰伦',
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'upload_date': '20141225',
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'timestamp': 1419523200,
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'description': 'md5:a4d8d89f44656af206b7b2555c0bce6c',
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},
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'skip': 'Blocked outside Mainland China',
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}, {
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'note': 'No lyrics.',
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'url': 'http://music.163.com/song?id=17241424',
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@ -112,9 +162,9 @@ class NetEaseMusicIE(NetEaseMusicBaseIE):
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'title': 'Opus 28',
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'creator': 'Dustin O\'Halloran',
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'upload_date': '20080211',
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'description': 'md5:f12945b0f6e0365e3b73c5032e1b0ff4',
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'timestamp': 1202745600,
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},
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'skip': 'Blocked outside Mainland China',
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}, {
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'note': 'Has translated name.',
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'url': 'http://music.163.com/#/song?id=22735043',
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@ -128,7 +178,6 @@ class NetEaseMusicIE(NetEaseMusicBaseIE):
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'timestamp': 1264608000,
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'alt_title': '说出愿望吧(Genie)',
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},
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'skip': 'Blocked outside Mainland China',
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}]
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def _process_lyrics(self, lyrics_info):
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