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# coding: utf-8from __future__ import unicode_literals
import base64
from .common import InfoExtractorfrom ..utils import ExtractorError
from ..compat import ( compat_urllib_parse, compat_ord, compat_urllib_request,)
class YoukuIE(InfoExtractor): IE_NAME = 'youku' IE_DESC = '优酷' _VALID_URL = r'''(?x)
(?: http://(?:v|player)\.youku\.com/(?:v_show/id_|player\.php/sid/)| youku:) (?P<id>[A-Za-z0-9]+)(?:\.html|/v\.swf|) '''
_TESTS = [{ 'url': 'http://v.youku.com/v_show/id_XMTc1ODE5Njcy.html', 'md5': '5f3af4192eabacc4501508d54a8cabd7', 'info_dict': { 'id': 'XMTc1ODE5Njcy_part1', 'title': '★Smile﹗♡ Git Fresh -Booty Music舞蹈.', 'ext': 'flv' } }, { 'url': 'http://player.youku.com/player.php/sid/XNDgyMDQ2NTQw/v.swf', 'only_matching': True, }, { 'url': 'http://v.youku.com/v_show/id_XODgxNjg1Mzk2_ev_1.html', 'info_dict': { 'id': 'XODgxNjg1Mzk2', 'title': '武媚娘传奇 85', }, 'playlist_count': 11, }, { 'url': 'http://v.youku.com/v_show/id_XMTI1OTczNDM5Mg==.html', 'info_dict': { 'id': 'XMTI1OTczNDM5Mg', 'title': '花千骨 04', }, 'playlist_count': 13, 'skip': 'Available in China only', }, { 'url': 'http://v.youku.com/v_show/id_XNjA1NzA2Njgw.html', 'note': 'Video protected with password', 'info_dict': { 'id': 'XNjA1NzA2Njgw', 'title': '邢義田复旦讲座之想象中的胡人—从“左衽孔子”说起', }, 'playlist_count': 19, 'params': { 'videopassword': '100600', }, }]
def construct_video_urls(self, data1, data2): # get sid, token def yk_t(s1, s2): ls = list(range(256)) t = 0 for i in range(256): t = (t + ls[i] + compat_ord(s1[i % len(s1)])) % 256 ls[i], ls[t] = ls[t], ls[i] s = bytearray() x, y = 0, 0 for i in range(len(s2)): y = (y + 1) % 256 x = (x + ls[y]) % 256 ls[x], ls[y] = ls[y], ls[x] s.append(compat_ord(s2[i]) ^ ls[(ls[x] + ls[y]) % 256]) return bytes(s)
sid, token = yk_t( b'becaf9be', base64.b64decode(data2['ep'].encode('ascii')) ).decode('ascii').split('_')
# get oip oip = data2['ip']
# get fileid string_ls = list( 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\:._-1234567890') shuffled_string_ls = [] seed = data1['seed'] N = len(string_ls) for ii in range(N): seed = (seed * 0xd3 + 0x754f) % 0x10000 idx = seed * len(string_ls) // 0x10000 shuffled_string_ls.append(string_ls[idx]) del string_ls[idx]
fileid_dict = {} for format in data1['streamtypes']: streamfileid = [ int(i) for i in data1['streamfileids'][format].strip('*').split('*')] fileid = ''.join( [shuffled_string_ls[i] for i in streamfileid]) fileid_dict[format] = fileid[:8] + '%s' + fileid[10:]
def get_fileid(format, n): fileid = fileid_dict[format] % hex(int(n))[2:].upper().zfill(2) return fileid
# get ep def generate_ep(format, n): fileid = get_fileid(format, n) ep_t = yk_t( b'bf7e5f01', ('%s_%s_%s' % (sid, fileid, token)).encode('ascii') ) ep = base64.b64encode(ep_t).decode('ascii') return ep
# generate video_urls video_urls_dict = {} for format in data1['streamtypes']: video_urls = [] for dt in data1['segs'][format]: n = str(int(dt['no'])) param = { 'K': dt['k'], 'hd': self.get_hd(format), 'myp': 0, 'ts': dt['seconds'], 'ypp': 0, 'ctype': 12, 'ev': 1, 'token': token, 'oip': oip, 'ep': generate_ep(format, n) } video_url = \ 'http://k.youku.com/player/getFlvPath/' + \ 'sid/' + sid + \ '_' + str(int(n) + 1).zfill(2) + \ '/st/' + self.parse_ext_l(format) + \ '/fileid/' + get_fileid(format, n) + '?' + \ compat_urllib_parse.urlencode(param) video_urls.append(video_url) video_urls_dict[format] = video_urls
return video_urls_dict
def get_hd(self, fm): hd_id_dict = { 'flv': '0', 'mp4': '1', 'hd2': '2', 'hd3': '3', '3gp': '0', '3gphd': '1' } return hd_id_dict[fm]
def parse_ext_l(self, fm): ext_dict = { 'flv': 'flv', 'mp4': 'mp4', 'hd2': 'flv', 'hd3': 'flv', '3gp': 'flv', '3gphd': 'mp4' } return ext_dict[fm]
def get_format_name(self, fm): _dict = { '3gp': 'h6', '3gphd': 'h5', 'flv': 'h4', 'mp4': 'h3', 'hd2': 'h2', 'hd3': 'h1' } return _dict[fm]
def _real_extract(self, url): video_id = self._match_id(url)
def retrieve_data(req_url, note): req = compat_urllib_request.Request(req_url)
cn_verification_proxy = self._downloader.params.get('cn_verification_proxy') if cn_verification_proxy: req.add_header('Ytdl-request-proxy', cn_verification_proxy)
raw_data = self._download_json(req, video_id, note=note) return raw_data['data'][0]
video_password = self._downloader.params.get('videopassword', None)
# request basic data basic_data_url = 'http://v.youku.com/player/getPlayList/VideoIDS/%s' % video_id if video_password: basic_data_url += '?password=%s' % video_password
data1 = retrieve_data( basic_data_url, 'Downloading JSON metadata 1') data2 = retrieve_data( 'http://v.youku.com/player/getPlayList/VideoIDS/%s/Pf/4/ctype/12/ev/1' % video_id, 'Downloading JSON metadata 2')
error_code = data1.get('error_code') if error_code: error = data1.get('error') if error is not None and '因版权原因无法观看此视频' in error: raise ExtractorError( 'Youku said: Sorry, this video is available in China only', expected=True) else: msg = 'Youku server reported error %i' % error_code if error is not None: msg += ': ' + error raise ExtractorError(msg)
title = data1['title']
# generate video_urls_dict video_urls_dict = self.construct_video_urls(data1, data2)
# construct info entries = [{ 'id': '%s_part%d' % (video_id, i + 1), 'title': title, 'formats': [], # some formats are not available for all parts, we have to detect # which one has all } for i in range(max(len(v) for v in data1['segs'].values()))] for fm in data1['streamtypes']: video_urls = video_urls_dict[fm] for video_url, seg, entry in zip(video_urls, data1['segs'][fm], entries): entry['formats'].append({ 'url': video_url, 'format_id': self.get_format_name(fm), 'ext': self.parse_ext_l(fm), 'filesize': int(seg['size']), })
return { '_type': 'multi_video', 'id': video_id, 'title': title, 'entries': entries, }
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