# coding: utf-8
from __future__ import unicode_literals
+import binascii
import hashlib
+import itertools
import math
-import os.path
-import random
import re
import time
-import uuid
-import zlib
from .common import InfoExtractor
-from ..compat import compat_urllib_parse
+from ..compat import (
+ compat_str,
+ compat_urllib_parse_urlencode,
+)
from ..utils import (
+ decode_packed_codes,
ExtractorError,
- url_basename,
+ intlist_to_bytes,
+ ohdave_rsa_encrypt,
+ remove_start,
+ urshift,
)
+def md5_text(text):
+ return hashlib.md5(text.encode('utf-8')).hexdigest()
+
+
+class IqiyiSDK(object):
+ def __init__(self, target, ip, timestamp):
+ self.target = target
+ self.ip = ip
+ self.timestamp = timestamp
+
+ @staticmethod
+ def split_sum(data):
+ return compat_str(sum(map(lambda p: int(p, 16), list(data))))
+
+ @staticmethod
+ def digit_sum(num):
+ if isinstance(num, int):
+ num = compat_str(num)
+ return compat_str(sum(map(int, num)))
+
+ def even_odd(self):
+ even = self.digit_sum(compat_str(self.timestamp)[::2])
+ odd = self.digit_sum(compat_str(self.timestamp)[1::2])
+ return even, odd
+
+ def preprocess(self, chunksize):
+ self.target = md5_text(self.target)
+ chunks = []
+ for i in range(32 // chunksize):
+ chunks.append(self.target[chunksize * i:chunksize * (i + 1)])
+ if 32 % chunksize:
+ chunks.append(self.target[32 - 32 % chunksize:])
+ return chunks, list(map(int, self.ip.split('.')))
+
+ def mod(self, modulus):
+ chunks, ip = self.preprocess(32)
+ self.target = chunks[0] + ''.join(map(lambda p: compat_str(p % modulus), ip))
+
+ def split(self, chunksize):
+ modulus_map = {
+ 4: 256,
+ 5: 10,
+ 8: 100,
+ }
+
+ chunks, ip = self.preprocess(chunksize)
+ ret = ''
+ for i in range(len(chunks)):
+ ip_part = compat_str(ip[i] % modulus_map[chunksize]) if i < 4 else ''
+ if chunksize == 8:
+ ret += ip_part + chunks[i]
+ else:
+ ret += chunks[i] + ip_part
+ self.target = ret
+
+ def handle_input16(self):
+ self.target = md5_text(self.target)
+ self.target = self.split_sum(self.target[:16]) + self.target + self.split_sum(self.target[16:])
+
+ def handle_input8(self):
+ self.target = md5_text(self.target)
+ ret = ''
+ for i in range(4):
+ part = self.target[8 * i:8 * (i + 1)]
+ ret += self.split_sum(part) + part
+ self.target = ret
+
+ def handleSum(self):
+ self.target = md5_text(self.target)
+ self.target = self.split_sum(self.target) + self.target
+
+ def date(self, scheme):
+ self.target = md5_text(self.target)
+ d = time.localtime(self.timestamp)
+ strings = {
+ 'y': compat_str(d.tm_year),
+ 'm': '%02d' % d.tm_mon,
+ 'd': '%02d' % d.tm_mday,
+ }
+ self.target += ''.join(map(lambda c: strings[c], list(scheme)))
+
+ def split_time_even_odd(self):
+ even, odd = self.even_odd()
+ self.target = odd + md5_text(self.target) + even
+
+ def split_time_odd_even(self):
+ even, odd = self.even_odd()
+ self.target = even + md5_text(self.target) + odd
+
+ def split_ip_time_sum(self):
+ chunks, ip = self.preprocess(32)
+ self.target = compat_str(sum(ip)) + chunks[0] + self.digit_sum(self.timestamp)
+
+ def split_time_ip_sum(self):
+ chunks, ip = self.preprocess(32)
+ self.target = self.digit_sum(self.timestamp) + chunks[0] + compat_str(sum(ip))
+
+
+class IqiyiSDKInterpreter(object):
+ def __init__(self, sdk_code):
+ self.sdk_code = sdk_code
+
+ def run(self, target, ip, timestamp):
+ self.sdk_code = decode_packed_codes(self.sdk_code)
+
+ functions = re.findall(r'input=([a-zA-Z0-9]+)\(input', self.sdk_code)
+
+ sdk = IqiyiSDK(target, ip, timestamp)
+
+ other_functions = {
+ 'handleSum': sdk.handleSum,
+ 'handleInput8': sdk.handle_input8,
+ 'handleInput16': sdk.handle_input16,
+ 'splitTimeEvenOdd': sdk.split_time_even_odd,
+ 'splitTimeOddEven': sdk.split_time_odd_even,
+ 'splitIpTimeSum': sdk.split_ip_time_sum,
+ 'splitTimeIpSum': sdk.split_time_ip_sum,
+ }
+ for function in functions:
+ if re.match(r'mod\d+', function):
+ sdk.mod(int(function[3:]))
+ elif re.match(r'date[ymd]{3}', function):
+ sdk.date(function[4:])
+ elif re.match(r'split\d+', function):
+ sdk.split(int(function[5:]))
+ elif function in other_functions:
+ other_functions[function]()
+ else:
+ raise ExtractorError('Unknown funcion %s' % function)
+
+ return sdk.target
+
+
class IqiyiIE(InfoExtractor):
IE_NAME = 'iqiyi'
+ IE_DESC = '爱奇艺'
+
+ _VALID_URL = r'https?://(?:(?:[^.]+\.)?iqiyi\.com|www\.pps\.tv)/.+\.html'
- _VALID_URL = r'http://(?:www\.)iqiyi.com/v_.+?\.html'
+ _NETRC_MACHINE = 'iqiyi'
_TESTS = [{
'url': 'http://www.iqiyi.com/v_19rrojlavg.html',
- 'md5': '2cb594dc2781e6c941a110d8f358118b',
+ 'md5': '470a6c160618577166db1a7aac5a3606',
'info_dict': {
'id': '9c1fb1b99d192b21c559e5a1a2cb3c73',
+ 'ext': 'mp4',
'title': '美国德州空中惊现奇异云团 酷似UFO',
- 'ext': 'f4v',
}
}, {
'url': 'http://www.iqiyi.com/v_19rrhnnclk.html',
+ 'md5': 'f09f0a6a59b2da66a26bf4eda669a4cc',
'info_dict': {
'id': 'e3f585b550a280af23c98b6cb2be19fb',
- 'title': '名侦探柯南第752集',
+ 'ext': 'mp4',
+ 'title': '名侦探柯南 国语版',
+ },
+ 'skip': 'Geo-restricted to China',
+ }, {
+ 'url': 'http://www.iqiyi.com/w_19rt6o8t9p.html',
+ 'only_matching': True,
+ }, {
+ 'url': 'http://www.iqiyi.com/a_19rrhbc6kt.html',
+ 'only_matching': True,
+ }, {
+ 'url': 'http://yule.iqiyi.com/pcb.html',
+ 'only_matching': True,
+ }, {
+ # VIP-only video. The first 2 parts (6 minutes) are available without login
+ # MD5 sums omitted as values are different on Travis CI and my machine
+ 'url': 'http://www.iqiyi.com/v_19rrny4w8w.html',
+ 'info_dict': {
+ 'id': 'f3cf468b39dddb30d676f89a91200dc1',
+ 'title': '泰坦尼克号',
},
'playlist': [{
- 'md5': '7e49376fecaffa115d951634917fe105',
- 'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part1',
- 'ext': 'f4v',
- 'title': '名侦探柯南第752集',
- },
- }, {
- 'md5': '41b75ba13bb7ac0e411131f92bc4f6ca',
- 'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part2',
- 'ext': 'f4v',
- 'title': '名侦探柯南第752集',
- },
- }, {
- 'md5': '0cee1dd0a3d46a83e71e2badeae2aab0',
- 'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part3',
- 'ext': 'f4v',
- 'title': '名侦探柯南第752集',
- },
- }, {
- 'md5': '4f8ad72373b0c491b582e7c196b0b1f9',
- 'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part4',
- 'ext': 'f4v',
- 'title': '名侦探柯南第752集',
- },
- }, {
- 'md5': 'd89ad028bcfad282918e8098e811711d',
- 'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part5',
- 'ext': 'f4v',
- 'title': '名侦探柯南第752集',
- },
- }, {
- 'md5': '9cb1e5c95da25dff0660c32ae50903b7',
'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part6',
+ 'id': 'f3cf468b39dddb30d676f89a91200dc1_part1',
'ext': 'f4v',
- 'title': '名侦探柯南第752集',
+ 'title': '泰坦尼克号',
},
}, {
- 'md5': '155116e0ff1867bbc9b98df294faabc9',
'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part7',
+ 'id': 'f3cf468b39dddb30d676f89a91200dc1_part2',
'ext': 'f4v',
- 'title': '名侦探柯南第752集',
- },
- }, {
- 'md5': '53f5db77622ae14fa493ed2a278a082b',
- 'info_dict': {
- 'id': 'e3f585b550a280af23c98b6cb2be19fb_part8',
- 'ext': 'f4v',
- 'title': '名侦探柯南第752集',
+ 'title': '泰坦尼克号',
},
}],
+ 'expected_warnings': ['Needs a VIP account for full video'],
+ }, {
+ 'url': 'http://www.iqiyi.com/a_19rrhb8ce1.html',
+ 'info_dict': {
+ 'id': '202918101',
+ 'title': '灌篮高手 国语版',
+ },
+ 'playlist_count': 101,
+ }, {
+ 'url': 'http://www.pps.tv/w_19rrbav0ph.html',
+ 'only_matching': True,
}]
_FORMATS_MAP = [
('10', 'h1'),
]
- def construct_video_urls(self, data, video_id, _uuid):
- def do_xor(x, y):
- a = y % 3
- if a == 1:
- return x ^ 121
- if a == 2:
- return x ^ 72
- return x ^ 103
-
- def get_encode_code(l):
- a = 0
- b = l.split('-')
- c = len(b)
- s = ''
- for i in range(c - 1, -1, -1):
- a = do_xor(int(b[c - i - 1], 16), i)
- s += chr(a)
- return s[::-1]
-
- def get_path_key(x, format_id, segment_index):
- mg = ')(*&^flash@#$%a'
- tm = self._download_json(
- 'http://data.video.qiyi.com/t?tn=' + str(random.random()), video_id,
- note='Download path key of segment %d for format %s' % (segment_index + 1, format_id)
- )['t']
- t = str(int(math.floor(int(tm) / (600.0))))
- return hashlib.md5((t + mg + x).encode('utf8')).hexdigest()
-
- video_urls_dict = {}
- for format_item in data['vp']['tkl'][0]['vs']:
- if 0 < int(format_item['bid']) <= 10:
- format_id = self.get_format(format_item['bid'])
- else:
- continue
-
- video_urls = []
-
- video_urls_info = format_item['fs']
- if not format_item['fs'][0]['l'].startswith('/'):
- t = get_encode_code(format_item['fs'][0]['l'])
- if t.endswith('mp4'):
- video_urls_info = format_item['flvs']
-
- for segment_index, segment in enumerate(video_urls_info):
- vl = segment['l']
- if not vl.startswith('/'):
- vl = get_encode_code(vl)
- key = get_path_key(
- vl.split('/')[-1].split('.')[0], format_id, segment_index)
- filesize = segment['b']
- base_url = data['vp']['du'].split('/')
- base_url.insert(-1, key)
- base_url = '/'.join(base_url)
- param = {
- 'su': _uuid,
- 'qyid': uuid.uuid4().hex,
- 'client': '',
- 'z': '',
- 'bt': '',
- 'ct': '',
- 'tn': str(int(time.time()))
- }
- api_video_url = base_url + vl + '?' + \
- compat_urllib_parse.urlencode(param)
- js = self._download_json(
- api_video_url, video_id,
- note='Download video info of segment %d for format %s' % (segment_index + 1, format_id))
- video_url = js['l']
- video_urls.append(
- (video_url, filesize))
-
- video_urls_dict[format_id] = video_urls
- return video_urls_dict
-
- def get_format(self, bid):
- matched_format_ids = [_format_id for _bid, _format_id in self._FORMATS_MAP if _bid == str(bid)]
- return matched_format_ids[0] if len(matched_format_ids) else None
-
- def get_bid(self, format_id):
- matched_bids = [_bid for _bid, _format_id in self._FORMATS_MAP if _format_id == format_id]
- return matched_bids[0] if len(matched_bids) else None
-
- def get_raw_data(self, tvid, video_id, enc_key, _uuid):
- tm = str(int(time.time()))
- param = {
- 'key': 'fvip',
- 'src': hashlib.md5(b'youtube-dl').hexdigest(),
- 'tvId': tvid,
- 'vid': video_id,
- 'vinfo': 1,
- 'tm': tm,
- 'enc': hashlib.md5(
- (enc_key + tm + tvid).encode('utf8')).hexdigest(),
- 'qyid': _uuid,
- 'tn': random.random(),
- 'um': 0,
- 'authkey': hashlib.md5(
- (tm + tvid).encode('utf8')).hexdigest()
+ def _real_initialize(self):
+ self._login()
+
+ @staticmethod
+ def _rsa_fun(data):
+ # public key extracted from http://static.iqiyi.com/js/qiyiV2/20160129180840/jobs/i18n/i18nIndex.js
+ N = 0xab86b6371b5318aaa1d3c9e612a9f1264f372323c8c0f19875b5fc3b3fd3afcc1e5bec527aa94bfa85bffc157e4245aebda05389a5357b75115ac94f074aefcd
+ e = 65537
+
+ return ohdave_rsa_encrypt(data, e, N)
+
+ def _login(self):
+ (username, password) = self._get_login_info()
+
+ # No authentication to be performed
+ if not username:
+ return True
+
+ data = self._download_json(
+ 'http://kylin.iqiyi.com/get_token', None,
+ note='Get token for logging', errnote='Unable to get token for logging')
+ sdk = data['sdk']
+ timestamp = int(time.time())
+ target = '/apis/reglogin/login.action?lang=zh_TW&area_code=null&email=%s&passwd=%s&agenttype=1&from=undefined&keeplogin=0&piccode=&fromurl=&_pos=1' % (
+ username, self._rsa_fun(password.encode('utf-8')))
+
+ interp = IqiyiSDKInterpreter(sdk)
+ sign = interp.run(target, data['ip'], timestamp)
+
+ validation_params = {
+ 'target': target,
+ 'server': 'BEA3AA1908656AABCCFF76582C4C6660',
+ 'token': data['token'],
+ 'bird_src': 'f8d91d57af224da7893dd397d52d811a',
+ 'sign': sign,
+ 'bird_t': timestamp,
}
+ validation_result = self._download_json(
+ 'http://kylin.iqiyi.com/validate?' + compat_urllib_parse_urlencode(validation_params), None,
+ note='Validate credentials', errnote='Unable to validate credentials')
- api_url = 'http://cache.video.qiyi.com/vms' + '?' + \
- compat_urllib_parse.urlencode(param)
- raw_data = self._download_json(api_url, video_id)
- return raw_data
-
- def get_enc_key(self, swf_url, video_id):
- filename, _ = os.path.splitext(url_basename(swf_url))
- enc_key_json = self._downloader.cache.load('iqiyi-enc-key', filename)
- if enc_key_json is not None:
- return enc_key_json[0]
-
- req = self._request_webpage(
- swf_url, video_id, note='download swf content')
- cn = req.read()
- cn = zlib.decompress(cn[8:])
- pt = re.compile(b'MixerRemote\x08(?P<enc_key>.+?)\$&vv')
- enc_key = self._search_regex(pt, cn, 'enc_key').decode('utf8')
+ MSG_MAP = {
+ 'P00107': 'please login via the web interface and enter the CAPTCHA code',
+ 'P00117': 'bad username or password',
+ }
- self._downloader.cache.store('iqiyi-enc-key', filename, [enc_key])
+ code = validation_result['code']
+ if code != 'A00000':
+ msg = MSG_MAP.get(code)
+ if not msg:
+ msg = 'error %s' % code
+ if validation_result.get('msg'):
+ msg += ': ' + validation_result['msg']
+ self._downloader.report_warning('unable to log in: ' + msg)
+ return False
+
+ return True
+
+ @staticmethod
+ def _gen_sc(tvid, timestamp):
+ M = [1732584193, -271733879]
+ M.extend([~M[0], ~M[1]])
+ I_table = [7, 12, 17, 22, 5, 9, 14, 20, 4, 11, 16, 23, 6, 10, 15, 21]
+ C_base = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8388608, 432]
+
+ def L(n, t):
+ if t is None:
+ t = 0
+ return trunc(((n >> 1) + (t >> 1) << 1) + (n & 1) + (t & 1))
+
+ def trunc(n):
+ n = n % 0x100000000
+ if n > 0x7fffffff:
+ n -= 0x100000000
+ return n
+
+ def transform(string, mod):
+ num = int(string, 16)
+ return (num >> 8 * (i % 4) & 255 ^ i % mod) << ((a & 3) << 3)
+
+ C = list(C_base)
+ o = list(M)
+ k = str(timestamp - 7)
+ for i in range(13):
+ a = i
+ C[a >> 2] |= ord(k[a]) << 8 * (a % 4)
+
+ for i in range(16):
+ a = i + 13
+ start = (i >> 2) * 8
+ r = '03967743b643f66763d623d637e30733'
+ C[a >> 2] |= transform(''.join(reversed(r[start:start + 8])), 7)
+
+ for i in range(16):
+ a = i + 29
+ start = (i >> 2) * 8
+ r = '7038766939776a32776a32706b337139'
+ C[a >> 2] |= transform(r[start:start + 8], 1)
+
+ for i in range(9):
+ a = i + 45
+ if i < len(tvid):
+ C[a >> 2] |= ord(tvid[i]) << 8 * (a % 4)
+
+ for a in range(64):
+ i = a
+ I = i >> 4
+ C_index = [i, 5 * i + 1, 3 * i + 5, 7 * i][I] % 16 + urshift(a, 6)
+ m = L(L(o[0], [
+ trunc(o[1] & o[2]) | trunc(~o[1] & o[3]),
+ trunc(o[3] & o[1]) | trunc(~o[3] & o[2]),
+ o[1] ^ o[2] ^ o[3],
+ o[2] ^ trunc(o[1] | ~o[3])
+ ][I]), L(
+ trunc(int(abs(math.sin(i + 1)) * 4294967296)),
+ C[C_index] if C_index < len(C) else None))
+ I = I_table[4 * I + i % 4]
+ o = [o[3],
+ L(o[1], trunc(trunc(m << I) | urshift(m, 32 - I))),
+ o[1],
+ o[2]]
+
+ new_M = [L(o[0], M[0]), L(o[1], M[1]), L(o[2], M[2]), L(o[3], M[3])]
+ s = [new_M[a >> 3] >> (1 ^ a & 7) * 4 & 15 for a in range(32)]
+ return binascii.hexlify(intlist_to_bytes(s))[1::2].decode('ascii')
+
+ def get_raw_data(self, tvid, video_id):
+ tm = int(time.time() * 1000)
+
+ sc = self._gen_sc(tvid, tm)
+ params = {
+ 'platForm': 'h5',
+ 'rate': 1,
+ 'tvid': tvid,
+ 'vid': video_id,
+ 'cupid': 'qc_100001_100186',
+ 'type': 'mp4',
+ 'nolimit': 0,
+ 'agenttype': 13,
+ 'src': 'd846d0c32d664d32b6b54ea48997a589',
+ 'sc': sc,
+ 't': tm - 7,
+ '__jsT': None,
+ }
- return enc_key
+ headers = {}
+ cn_verification_proxy = self._downloader.params.get('cn_verification_proxy')
+ if cn_verification_proxy:
+ headers['Ytdl-request-proxy'] = cn_verification_proxy
+ return self._download_json(
+ 'http://cache.m.iqiyi.com/jp/tmts/%s/%s/' % (tvid, video_id),
+ video_id, transform_source=lambda s: remove_start(s, 'var tvInfoJs='),
+ query=params, headers=headers)
+
+ def _extract_playlist(self, webpage):
+ PAGE_SIZE = 50
+
+ links = re.findall(
+ r'<a[^>]+class="site-piclist_pic_link"[^>]+href="(http://www\.iqiyi\.com/.+\.html)"',
+ webpage)
+ if not links:
+ return
+
+ album_id = self._search_regex(
+ r'albumId\s*:\s*(\d+),', webpage, 'album ID')
+ album_title = self._search_regex(
+ r'data-share-title="([^"]+)"', webpage, 'album title', fatal=False)
+
+ entries = list(map(self.url_result, links))
+
+ # Start from 2 because links in the first page are already on webpage
+ for page_num in itertools.count(2):
+ pagelist_page = self._download_webpage(
+ 'http://cache.video.qiyi.com/jp/avlist/%s/%d/%d/' % (album_id, page_num, PAGE_SIZE),
+ album_id,
+ note='Download playlist page %d' % page_num,
+ errnote='Failed to download playlist page %d' % page_num)
+ pagelist = self._parse_json(
+ remove_start(pagelist_page, 'var tvInfoJs='), album_id)
+ vlist = pagelist['data']['vlist']
+ for item in vlist:
+ entries.append(self.url_result(item['vurl']))
+ if len(vlist) < PAGE_SIZE:
+ break
+
+ return self.playlist_result(entries, album_id, album_title)
def _real_extract(self, url):
webpage = self._download_webpage(
url, 'temp_id', note='download video page')
+
+ # There's no simple way to determine whether an URL is a playlist or not
+ # So detect it
+ playlist_result = self._extract_playlist(webpage)
+ if playlist_result:
+ return playlist_result
+
tvid = self._search_regex(
r'data-player-tvid\s*=\s*[\'"](\d+)', webpage, 'tvid')
video_id = self._search_regex(
r'data-player-videoid\s*=\s*[\'"]([a-f\d]+)', webpage, 'video_id')
- swf_url = self._search_regex(
- r'(http://[^\'"]+MainPlayer[^.]+\.swf)', webpage, 'swf player URL')
- _uuid = uuid.uuid4().hex
-
- enc_key = self.get_enc_key(swf_url, video_id)
-
- raw_data = self.get_raw_data(tvid, video_id, enc_key, _uuid)
-
- if raw_data['code'] != 'A000000':
- raise ExtractorError('Unable to load data. Error code: ' + raw_data['code'])
-
- if not raw_data['data']['vp']['tkl']:
- raise ExtractorError('No support iQiqy VIP video')
-
- data = raw_data['data']
-
- title = data['vi']['vn']
-
- # generate video_urls_dict
- video_urls_dict = self.construct_video_urls(
- data, video_id, _uuid)
-
- # construct info
- entries = []
- for format_id in video_urls_dict:
- video_urls = video_urls_dict[format_id]
- for i, video_url_info in enumerate(video_urls):
- if len(entries) < i + 1:
- entries.append({'formats': []})
- entries[i]['formats'].append(
- {
- 'url': video_url_info[0],
- 'filesize': video_url_info[-1],
- 'format_id': format_id,
- 'preference': int(self.get_bid(format_id))
- }
- )
-
- for i in range(len(entries)):
- self._sort_formats(entries[i]['formats'])
- entries[i].update(
- {
- 'id': '%s_part%d' % (video_id, i + 1),
- 'title': title,
- }
- )
-
- if len(entries) > 1:
- info = {
- '_type': 'multi_video',
- 'id': video_id,
- 'title': title,
- 'entries': entries,
- }
- else:
- info = entries[0]
- info['id'] = video_id
- info['title'] = title
-
- return info
+
+ for _ in range(5):
+ raw_data = self.get_raw_data(tvid, video_id)
+
+ if raw_data['code'] != 'A00000':
+ if raw_data['code'] == 'A00111':
+ self.raise_geo_restricted()
+ raise ExtractorError('Unable to load data. Error code: ' + raw_data['code'])
+
+ data = raw_data['data']
+
+ # iQiYi sometimes returns Ads
+ if not isinstance(data['playInfo'], dict):
+ self._sleep(5, video_id)
+ continue
+
+ title = data['playInfo']['an']
+ break
+
+ return {
+ 'id': video_id,
+ 'title': title,
+ 'url': data['m3u'],
+ }
projects / youtube-dl / blobdiff