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[youtubedl] / youtube_dl / extractor / youku.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
4 import base64
5 import itertools
6 import random
7 import re
8 import string
9 import time
10
11 from .common import InfoExtractor
12 from ..compat import (
13 compat_urllib_parse_urlencode,
14 compat_ord,
15 )
16 from ..utils import (
17 ExtractorError,
18 get_element_by_attribute,
19 )
20
21
22 class YoukuIE(InfoExtractor):
23 IE_NAME = 'youku'
24 IE_DESC = '优酷'
25 _VALID_URL = r'''(?x)
26 (?:
27 http://(?:v|player)\.youku\.com/(?:v_show/id_|player\.php/sid/)|
28 youku:)
29 (?P<id>[A-Za-z0-9]+)(?:\.html|/v\.swf|)
30 '''
31
32 _TESTS = [{
33 # MD5 is unstable
34 'url': 'http://v.youku.com/v_show/id_XMTc1ODE5Njcy.html',
35 'info_dict': {
36 'id': 'XMTc1ODE5Njcy_part1',
37 'title': '★Smile﹗♡ Git Fresh -Booty Music舞蹈.',
38 'ext': 'flv'
39 }
40 }, {
41 'url': 'http://player.youku.com/player.php/sid/XNDgyMDQ2NTQw/v.swf',
42 'only_matching': True,
43 }, {
44 'url': 'http://v.youku.com/v_show/id_XODgxNjg1Mzk2_ev_1.html',
45 'info_dict': {
46 'id': 'XODgxNjg1Mzk2',
47 'title': '武媚娘传奇 85',
48 },
49 'playlist_count': 11,
50 'skip': 'Available in China only',
51 }, {
52 'url': 'http://v.youku.com/v_show/id_XMTI1OTczNDM5Mg==.html',
53 'info_dict': {
54 'id': 'XMTI1OTczNDM5Mg',
55 'title': '花千骨 04',
56 },
57 'playlist_count': 13,
58 }, {
59 'url': 'http://v.youku.com/v_show/id_XNjA1NzA2Njgw.html',
60 'note': 'Video protected with password',
61 'info_dict': {
62 'id': 'XNjA1NzA2Njgw',
63 'title': '邢義田复旦讲座之想象中的胡人—从“左衽孔子”说起',
64 },
65 'playlist_count': 19,
66 'params': {
67 'videopassword': '100600',
68 },
69 }, {
70 # /play/get.json contains streams with "channel_type":"tail"
71 'url': 'http://v.youku.com/v_show/id_XOTUxMzg4NDMy.html',
72 'info_dict': {
73 'id': 'XOTUxMzg4NDMy',
74 'title': '我的世界☆明月庄主☆车震猎杀☆杀人艺术Minecraft',
75 },
76 'playlist_count': 6,
77 }]
78
79 def construct_video_urls(self, data):
80 # get sid, token
81 def yk_t(s1, s2):
82 ls = list(range(256))
83 t = 0
84 for i in range(256):
85 t = (t + ls[i] + compat_ord(s1[i % len(s1)])) % 256
86 ls[i], ls[t] = ls[t], ls[i]
87 s = bytearray()
88 x, y = 0, 0
89 for i in range(len(s2)):
90 y = (y + 1) % 256
91 x = (x + ls[y]) % 256
92 ls[x], ls[y] = ls[y], ls[x]
93 s.append(compat_ord(s2[i]) ^ ls[(ls[x] + ls[y]) % 256])
94 return bytes(s)
95
96 sid, token = yk_t(
97 b'becaf9be', base64.b64decode(data['security']['encrypt_string'].encode('ascii'))
98 ).decode('ascii').split('_')
99
100 # get oip
101 oip = data['security']['ip']
102
103 fileid_dict = {}
104 for stream in data['stream']:
105 if stream.get('channel_type') == 'tail':
106 continue
107 format = stream.get('stream_type')
108 fileid = stream['stream_fileid']
109 fileid_dict[format] = fileid
110
111 def get_fileid(format, n):
112 number = hex(int(str(n), 10))[2:].upper()
113 if len(number) == 1:
114 number = '0' + number
115 streamfileids = fileid_dict[format]
116 fileid = streamfileids[0:8] + number + streamfileids[10:]
117 return fileid
118
119 # get ep
120 def generate_ep(format, n):
121 fileid = get_fileid(format, n)
122 ep_t = yk_t(
123 b'bf7e5f01',
124 ('%s_%s_%s' % (sid, fileid, token)).encode('ascii')
125 )
126 ep = base64.b64encode(ep_t).decode('ascii')
127 return ep
128
129 # generate video_urls
130 video_urls_dict = {}
131 for stream in data['stream']:
132 if stream.get('channel_type') == 'tail':
133 continue
134 format = stream.get('stream_type')
135 video_urls = []
136 for dt in stream['segs']:
137 n = str(stream['segs'].index(dt))
138 param = {
139 'K': dt['key'],
140 'hd': self.get_hd(format),
141 'myp': 0,
142 'ypp': 0,
143 'ctype': 12,
144 'ev': 1,
145 'token': token,
146 'oip': oip,
147 'ep': generate_ep(format, n)
148 }
149 video_url = \
150 'http://k.youku.com/player/getFlvPath/' + \
151 'sid/' + sid + \
152 '_00' + \
153 '/st/' + self.parse_ext_l(format) + \
154 '/fileid/' + get_fileid(format, n) + '?' + \
155 compat_urllib_parse_urlencode(param)
156 video_urls.append(video_url)
157 video_urls_dict[format] = video_urls
158
159 return video_urls_dict
160
161 @staticmethod
162 def get_ysuid():
163 return '%d%s' % (int(time.time()), ''.join([
164 random.choice(string.ascii_letters) for i in range(3)]))
165
166 def get_hd(self, fm):
167 hd_id_dict = {
168 '3gp': '0',
169 '3gphd': '1',
170 'flv': '0',
171 'flvhd': '0',
172 'mp4': '1',
173 'mp4hd': '1',
174 'mp4hd2': '1',
175 'mp4hd3': '1',
176 'hd2': '2',
177 'hd3': '3',
178 }
179 return hd_id_dict[fm]
180
181 def parse_ext_l(self, fm):
182 ext_dict = {
183 '3gp': 'flv',
184 '3gphd': 'mp4',
185 'flv': 'flv',
186 'flvhd': 'flv',
187 'mp4': 'mp4',
188 'mp4hd': 'mp4',
189 'mp4hd2': 'flv',
190 'mp4hd3': 'flv',
191 'hd2': 'flv',
192 'hd3': 'flv',
193 }
194 return ext_dict[fm]
195
196 def get_format_name(self, fm):
197 _dict = {
198 '3gp': 'h6',
199 '3gphd': 'h5',
200 'flv': 'h4',
201 'flvhd': 'h4',
202 'mp4': 'h3',
203 'mp4hd': 'h3',
204 'mp4hd2': 'h4',
205 'mp4hd3': 'h4',
206 'hd2': 'h2',
207 'hd3': 'h1',
208 }
209 return _dict[fm]
210
211 def _real_extract(self, url):
212 video_id = self._match_id(url)
213
214 self._set_cookie('youku.com', '__ysuid', self.get_ysuid())
215
216 def retrieve_data(req_url, note):
217 headers = {
218 'Referer': req_url,
219 }
220 headers.update(self.geo_verification_headers())
221 self._set_cookie('youku.com', 'xreferrer', 'http://www.youku.com')
222
223 raw_data = self._download_json(req_url, video_id, note=note, headers=headers)
224
225 return raw_data['data']
226
227 video_password = self._downloader.params.get('videopassword')
228
229 # request basic data
230 basic_data_url = 'http://play.youku.com/play/get.json?vid=%s&ct=12' % video_id
231 if video_password:
232 basic_data_url += '&pwd=%s' % video_password
233
234 data = retrieve_data(basic_data_url, 'Downloading JSON metadata')
235
236 error = data.get('error')
237 if error:
238 error_note = error.get('note')
239 if error_note is not None and '因版权原因无法观看此视频' in error_note:
240 raise ExtractorError(
241 'Youku said: Sorry, this video is available in China only', expected=True)
242 elif error_note and '该视频被设为私密' in error_note:
243 raise ExtractorError(
244 'Youku said: Sorry, this video is private', expected=True)
245 else:
246 msg = 'Youku server reported error %i' % error.get('code')
247 if error_note is not None:
248 msg += ': ' + error_note
249 raise ExtractorError(msg)
250
251 # get video title
252 title = data['video']['title']
253
254 # generate video_urls_dict
255 video_urls_dict = self.construct_video_urls(data)
256
257 # construct info
258 entries = [{
259 'id': '%s_part%d' % (video_id, i + 1),
260 'title': title,
261 'formats': [],
262 # some formats are not available for all parts, we have to detect
263 # which one has all
264 } for i in range(max(len(v.get('segs')) for v in data['stream']))]
265 for stream in data['stream']:
266 if stream.get('channel_type') == 'tail':
267 continue
268 fm = stream.get('stream_type')
269 video_urls = video_urls_dict[fm]
270 for video_url, seg, entry in zip(video_urls, stream['segs'], entries):
271 entry['formats'].append({
272 'url': video_url,
273 'format_id': self.get_format_name(fm),
274 'ext': self.parse_ext_l(fm),
275 'filesize': int(seg['size']),
276 'width': stream.get('width'),
277 'height': stream.get('height'),
278 })
279
280 return {
281 '_type': 'multi_video',
282 'id': video_id,
283 'title': title,
284 'entries': entries,
285 }
286
287
288 class YoukuShowIE(InfoExtractor):
289 _VALID_URL = r'https?://(?:www\.)?youku\.com/show_page/id_(?P<id>[0-9a-z]+)\.html'
290 IE_NAME = 'youku:show'
291
292 _TEST = {
293 'url': 'http://www.youku.com/show_page/id_zc7c670be07ff11e48b3f.html',
294 'info_dict': {
295 'id': 'zc7c670be07ff11e48b3f',
296 'title': '花千骨 未删减版',
297 'description': 'md5:578d4f2145ae3f9128d9d4d863312910',
298 },
299 'playlist_count': 50,
300 }
301
302 _PAGE_SIZE = 40
303
304 def _find_videos_in_page(self, webpage):
305 videos = re.findall(
306 r'<li><a[^>]+href="(?P<url>https?://v\.youku\.com/[^"]+)"[^>]+title="(?P<title>[^"]+)"', webpage)
307 return [
308 self.url_result(video_url, YoukuIE.ie_key(), title)
309 for video_url, title in videos]
310
311 def _real_extract(self, url):
312 show_id = self._match_id(url)
313 webpage = self._download_webpage(url, show_id)
314
315 entries = self._find_videos_in_page(webpage)
316
317 playlist_title = self._html_search_regex(
318 r'<span[^>]+class="name">([^<]+)</span>', webpage, 'playlist title', fatal=False)
319 detail_div = get_element_by_attribute('class', 'detail', webpage) or ''
320 playlist_description = self._html_search_regex(
321 r'<span[^>]+style="display:none"[^>]*>([^<]+)</span>',
322 detail_div, 'playlist description', fatal=False)
323
324 for idx in itertools.count(1):
325 episodes_page = self._download_webpage(
326 'http://www.youku.com/show_episode/id_%s.html' % show_id,
327 show_id, query={'divid': 'reload_%d' % (idx * self._PAGE_SIZE + 1)},
328 note='Downloading episodes page %d' % idx)
329 new_entries = self._find_videos_in_page(episodes_page)
330 entries.extend(new_entries)
331 if len(new_entries) < self._PAGE_SIZE:
332 break
333
334 return self.playlist_result(entries, show_id, playlist_title, playlist_description)