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[youtube-dl.git] / youtube_dl / extractor / youtube.py
1 # coding: utf-8
2
3 import json
4 import netrc
5 import re
6 import socket
7 import itertools
8
9 from .common import InfoExtractor, SearchInfoExtractor
10 from ..utils import (
11     compat_http_client,
12     compat_parse_qs,
13     compat_urllib_error,
14     compat_urllib_parse,
15     compat_urllib_request,
16     compat_str,
17
18     clean_html,
19     get_element_by_id,
20     ExtractorError,
21     unescapeHTML,
22     unified_strdate,
23     orderedSet,
24 )
25
26 class YoutubeBaseInfoExtractor(InfoExtractor):
27     """Provide base functions for Youtube extractors"""
28     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
29     _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
30     _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
31     _NETRC_MACHINE = 'youtube'
32     # If True it will raise an error if no login info is provided
33     _LOGIN_REQUIRED = False
34
35     def report_lang(self):
36         """Report attempt to set language."""
37         self.to_screen(u'Setting language')
38
39     def _set_language(self):
40         request = compat_urllib_request.Request(self._LANG_URL)
41         try:
42             self.report_lang()
43             compat_urllib_request.urlopen(request).read()
44         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
45             self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
46             return False
47         return True
48
49     def _login(self):
50         (username, password) = self._get_login_info()
51         # No authentication to be performed
52         if username is None:
53             if self._LOGIN_REQUIRED:
54                 raise ExtractorError(u'No login info available, needed for using %s.' % self.IE_NAME, expected=True)
55             return False
56
57         request = compat_urllib_request.Request(self._LOGIN_URL)
58         try:
59             login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
60         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
61             self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
62             return False
63
64         galx = None
65         dsh = None
66         match = re.search(re.compile(r'<input.+?name="GALX".+?value="(.+?)"', re.DOTALL), login_page)
67         if match:
68           galx = match.group(1)
69         match = re.search(re.compile(r'<input.+?name="dsh".+?value="(.+?)"', re.DOTALL), login_page)
70         if match:
71           dsh = match.group(1)
72
73         # Log in
74         login_form_strs = {
75                 u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
76                 u'Email': username,
77                 u'GALX': galx,
78                 u'Passwd': password,
79                 u'PersistentCookie': u'yes',
80                 u'_utf8': u'霱',
81                 u'bgresponse': u'js_disabled',
82                 u'checkConnection': u'',
83                 u'checkedDomains': u'youtube',
84                 u'dnConn': u'',
85                 u'dsh': dsh,
86                 u'pstMsg': u'0',
87                 u'rmShown': u'1',
88                 u'secTok': u'',
89                 u'signIn': u'Sign in',
90                 u'timeStmp': u'',
91                 u'service': u'youtube',
92                 u'uilel': u'3',
93                 u'hl': u'en_US',
94         }
95         # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
96         # chokes on unicode
97         login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
98         login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
99         request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
100         try:
101             self.report_login()
102             login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
103             if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
104                 self._downloader.report_warning(u'unable to log in: bad username or password')
105                 return False
106         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
107             self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
108             return False
109         return True
110
111     def _confirm_age(self):
112         age_form = {
113                 'next_url':     '/',
114                 'action_confirm':   'Confirm',
115                 }
116         request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
117         try:
118             self.report_age_confirmation()
119             compat_urllib_request.urlopen(request).read().decode('utf-8')
120         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
121             raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
122         return True
123
124     def _real_initialize(self):
125         if self._downloader is None:
126             return
127         if not self._set_language():
128             return
129         if not self._login():
130             return
131         self._confirm_age()
132
133 class YoutubeIE(YoutubeBaseInfoExtractor):
134     IE_DESC = u'YouTube.com'
135     _VALID_URL = r"""^
136                      (
137                          (?:https?://)?                                       # http(s):// (optional)
138                          (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
139                             tube\.majestyc\.net/)                             # the various hostnames, with wildcard subdomains
140                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
141                          (?:                                                  # the various things that can precede the ID:
142                              (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
143                              |(?:                                             # or the v= param in all its forms
144                                  (?:watch|movie(?:_popup)?(?:\.php)?)?              # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
145                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
146                                  (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
147                                  v=
148                              )
149                          )?                                                   # optional -> youtube.com/xxxx is OK
150                      )?                                                       # all until now is optional -> you can pass the naked ID
151                      ([0-9A-Za-z_-]+)                                         # here is it! the YouTube video ID
152                      (?(1).+)?                                                # if we found the ID, everything can follow
153                      $"""
154     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
155     # Listed in order of quality
156     _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13',
157                           '95', '94', '93', '92', '132', '151',
158                           '85', '84', '102', '83', '101', '82', '100',
159                           ]
160     _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13',
161                                       '95', '94', '93', '92', '132', '151',
162                                       '85', '102', '84', '101', '83', '100', '82',
163                                       ]
164     _video_extensions = {
165         '13': '3gp',
166         '17': 'mp4',
167         '18': 'mp4',
168         '22': 'mp4',
169         '37': 'mp4',
170         '38': 'mp4',
171         '43': 'webm',
172         '44': 'webm',
173         '45': 'webm',
174         '46': 'webm',
175
176         # 3d videos
177         '82': 'mp4',
178         '83': 'mp4',
179         '84': 'mp4',
180         '85': 'mp4',
181         '100': 'webm',
182         '101': 'webm',
183         '102': 'webm',
184         
185         # videos that use m3u8
186         '92': 'mp4',
187         '93': 'mp4',
188         '94': 'mp4',
189         '95': 'mp4',
190         '96': 'mp4',
191         '132': 'mp4',
192         '151': 'mp4',
193     }
194     _video_dimensions = {
195         '5': '240x400',
196         '6': '???',
197         '13': '???',
198         '17': '144x176',
199         '18': '360x640',
200         '22': '720x1280',
201         '34': '360x640',
202         '35': '480x854',
203         '37': '1080x1920',
204         '38': '3072x4096',
205         '43': '360x640',
206         '44': '480x854',
207         '45': '720x1280',
208         '46': '1080x1920',
209         '82': '360p',
210         '83': '480p',
211         '84': '720p',
212         '85': '1080p',
213         '92': '240p',
214         '93': '360p',
215         '94': '480p',
216         '95': '720p',
217         '96': '1080p',
218         '100': '360p',
219         '101': '480p',
220         '102': '720p',        
221         '132': '240p',
222         '151': '72p',
223     }
224     _3d_itags = ['85', '84', '102', '83', '101', '82', '100']
225     IE_NAME = u'youtube'
226     _TESTS = [
227         {
228             u"url":  u"http://www.youtube.com/watch?v=BaW_jenozKc",
229             u"file":  u"BaW_jenozKc.mp4",
230             u"info_dict": {
231                 u"title": u"youtube-dl test video \"'/\\ä↭𝕐",
232                 u"uploader": u"Philipp Hagemeister",
233                 u"uploader_id": u"phihag",
234                 u"upload_date": u"20121002",
235                 u"description": u"test chars:  \"'/\\ä↭𝕐\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de ."
236             }
237         },
238         {
239             u"url":  u"http://www.youtube.com/watch?v=1ltcDfZMA3U",
240             u"file":  u"1ltcDfZMA3U.flv",
241             u"note": u"Test VEVO video (#897)",
242             u"info_dict": {
243                 u"upload_date": u"20070518",
244                 u"title": u"Maps - It Will Find You",
245                 u"description": u"Music video by Maps performing It Will Find You.",
246                 u"uploader": u"MuteUSA",
247                 u"uploader_id": u"MuteUSA"
248             }
249         },
250         {
251             u"url":  u"http://www.youtube.com/watch?v=UxxajLWwzqY",
252             u"file":  u"UxxajLWwzqY.mp4",
253             u"note": u"Test generic use_cipher_signature video (#897)",
254             u"info_dict": {
255                 u"upload_date": u"20120506",
256                 u"title": u"Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]",
257                 u"description": u"md5:b085c9804f5ab69f4adea963a2dceb3c",
258                 u"uploader": u"IconaPop",
259                 u"uploader_id": u"IconaPop"
260             }
261         },
262         {
263             u"url":  u"https://www.youtube.com/watch?v=07FYdnEawAQ",
264             u"file":  u"07FYdnEawAQ.mp4",
265             u"note": u"Test VEVO video with age protection (#956)",
266             u"info_dict": {
267                 u"upload_date": u"20130703",
268                 u"title": u"Justin Timberlake - Tunnel Vision (Explicit)",
269                 u"description": u"md5:64249768eec3bc4276236606ea996373",
270                 u"uploader": u"justintimberlakeVEVO",
271                 u"uploader_id": u"justintimberlakeVEVO"
272             }
273         },
274         {
275             u'url': u'https://www.youtube.com/watch?v=TGi3HqYrWHE',
276             u'file': u'TGi3HqYrWHE.mp4',
277             u'note': u'm3u8 video',
278             u'info_dict': {
279                 u'title': u'Triathlon - Men - London 2012 Olympic Games',
280                 u'description': u'- Men -  TR02 - Triathlon - 07 August 2012 - London 2012 Olympic Games',
281                 u'uploader': u'olympic',
282                 u'upload_date': u'20120807',
283                 u'uploader_id': u'olympic',
284             },
285             u'params': {
286                 u'skip_download': True,
287             },
288         },
289     ]
290
291
292     @classmethod
293     def suitable(cls, url):
294         """Receives a URL and returns True if suitable for this IE."""
295         if YoutubePlaylistIE.suitable(url) or YoutubeSubscriptionsIE.suitable(url): return False
296         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
297
298     def report_video_webpage_download(self, video_id):
299         """Report attempt to download video webpage."""
300         self.to_screen(u'%s: Downloading video webpage' % video_id)
301
302     def report_video_info_webpage_download(self, video_id):
303         """Report attempt to download video info webpage."""
304         self.to_screen(u'%s: Downloading video info webpage' % video_id)
305
306     def report_video_subtitles_download(self, video_id):
307         """Report attempt to download video info webpage."""
308         self.to_screen(u'%s: Checking available subtitles' % video_id)
309
310     def report_video_subtitles_request(self, video_id, sub_lang, format):
311         """Report attempt to download video info webpage."""
312         self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
313
314     def report_video_subtitles_available(self, video_id, sub_lang_list):
315         """Report available subtitles."""
316         sub_lang = ",".join(list(sub_lang_list.keys()))
317         self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
318
319     def report_information_extraction(self, video_id):
320         """Report attempt to extract video information."""
321         self.to_screen(u'%s: Extracting video information' % video_id)
322
323     def report_unavailable_format(self, video_id, format):
324         """Report extracted video URL."""
325         self.to_screen(u'%s: Format %s not available' % (video_id, format))
326
327     def report_rtmp_download(self):
328         """Indicate the download will use the RTMP protocol."""
329         self.to_screen(u'RTMP download detected')
330
331     def _decrypt_signature(self, s):
332         """Turn the encrypted s field into a working signature"""
333
334         if len(s) == 92:
335             return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
336         elif len(s) == 90:
337             return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
338         elif len(s) == 89:
339             return s[84:78:-1] + s[87] + s[77:60:-1] + s[0] + s[59:3:-1]
340         elif len(s) == 88:
341             return s[48] + s[81:67:-1] + s[82] + s[66:62:-1] + s[85] + s[61:48:-1] + s[67] + s[47:12:-1] + s[3] + s[11:3:-1] + s[2] + s[12]
342         elif len(s) == 87:
343             return s[83:53:-1] + s[3] + s[52:40:-1] + s[86] + s[39:10:-1] + s[0] + s[9:3:-1] + s[53]
344         elif len(s) == 86:
345             return s[5:20] + s[2] + s[21:]
346         elif len(s) == 85:
347             return s[2:8] + s[0] + s[9:21] + s[65] + s[22:65] + s[84] + s[66:82] + s[21]
348         elif len(s) == 84:
349             return s[83:27:-1] + s[0] + s[26:5:-1] + s[2:0:-1] + s[27]
350         elif len(s) == 83:
351             return s[81:64:-1] + s[82] + s[63:52:-1] + s[45] + s[51:45:-1] + s[1] + s[44:1:-1] + s[0]
352         elif len(s) == 82:
353             return s[36] + s[79:67:-1] + s[81] + s[66:40:-1] + s[33] + s[39:36:-1] + s[40] + s[35] + s[0] + s[67] + s[32:0:-1] + s[34]
354         elif len(s) == 81:
355             return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
356         elif len(s) == 79:
357             return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
358
359         else:
360             raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
361
362     def _decrypt_signature_age_gate(self, s):
363         # The videos with age protection use another player, so the algorithms
364         # can be different.
365         if len(s) == 86:
366             return s[2:63] + s[82] + s[64:82] + s[63]
367         else:
368             # Fallback to the other algortihms
369             return self._decrypt_signature(s)
370
371
372     def _get_available_subtitles(self, video_id):
373         self.report_video_subtitles_download(video_id)
374         request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
375         try:
376             sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
377         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
378             return (u'unable to download video subtitles: %s' % compat_str(err), None)
379         sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
380         sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
381         if not sub_lang_list:
382             return (u'video doesn\'t have subtitles', None)
383         return sub_lang_list
384
385     def _list_available_subtitles(self, video_id):
386         sub_lang_list = self._get_available_subtitles(video_id)
387         self.report_video_subtitles_available(video_id, sub_lang_list)
388
389     def _request_subtitle(self, sub_lang, sub_name, video_id, format):
390         """
391         Return tuple:
392         (error_message, sub_lang, sub)
393         """
394         self.report_video_subtitles_request(video_id, sub_lang, format)
395         params = compat_urllib_parse.urlencode({
396             'lang': sub_lang,
397             'name': sub_name,
398             'v': video_id,
399             'fmt': format,
400         })
401         url = 'http://www.youtube.com/api/timedtext?' + params
402         try:
403             sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
404         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
405             return (u'unable to download video subtitles: %s' % compat_str(err), None, None)
406         if not sub:
407             return (u'Did not fetch video subtitles', None, None)
408         return (None, sub_lang, sub)
409
410     def _request_automatic_caption(self, video_id, webpage):
411         """We need the webpage for getting the captions url, pass it as an
412            argument to speed up the process."""
413         sub_lang = self._downloader.params.get('subtitleslang') or 'en'
414         sub_format = self._downloader.params.get('subtitlesformat')
415         self.to_screen(u'%s: Looking for automatic captions' % video_id)
416         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
417         err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
418         if mobj is None:
419             return [(err_msg, None, None)]
420         player_config = json.loads(mobj.group(1))
421         try:
422             args = player_config[u'args']
423             caption_url = args[u'ttsurl']
424             timestamp = args[u'timestamp']
425             params = compat_urllib_parse.urlencode({
426                 'lang': 'en',
427                 'tlang': sub_lang,
428                 'fmt': sub_format,
429                 'ts': timestamp,
430                 'kind': 'asr',
431             })
432             subtitles_url = caption_url + '&' + params
433             sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
434             return [(None, sub_lang, sub)]
435         except KeyError:
436             return [(err_msg, None, None)]
437
438     def _extract_subtitle(self, video_id):
439         """
440         Return a list with a tuple:
441         [(error_message, sub_lang, sub)]
442         """
443         sub_lang_list = self._get_available_subtitles(video_id)
444         sub_format = self._downloader.params.get('subtitlesformat')
445         if  isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
446             return [(sub_lang_list[0], None, None)]
447         if self._downloader.params.get('subtitleslang', False):
448             sub_lang = self._downloader.params.get('subtitleslang')
449         elif 'en' in sub_lang_list:
450             sub_lang = 'en'
451         else:
452             sub_lang = list(sub_lang_list.keys())[0]
453         if not sub_lang in sub_lang_list:
454             return [(u'no closed captions found in the specified language "%s"' % sub_lang, None, None)]
455
456         subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
457         return [subtitle]
458
459     def _extract_all_subtitles(self, video_id):
460         sub_lang_list = self._get_available_subtitles(video_id)
461         sub_format = self._downloader.params.get('subtitlesformat')
462         if  isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
463             return [(sub_lang_list[0], None, None)]
464         subtitles = []
465         for sub_lang in sub_lang_list:
466             subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
467             subtitles.append(subtitle)
468         return subtitles
469
470     def _print_formats(self, formats):
471         print('Available formats:')
472         for x in formats:
473             print('%s\t:\t%s\t[%s]%s' %(x, self._video_extensions.get(x, 'flv'),
474                                         self._video_dimensions.get(x, '???'),
475                                         ' (3D)' if x in self._3d_itags else ''))
476
477     def _extract_id(self, url):
478         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
479         if mobj is None:
480             raise ExtractorError(u'Invalid URL: %s' % url)
481         video_id = mobj.group(2)
482         return video_id
483
484     def _get_video_url_list(self, url_map):
485         """
486         Transform a dictionary in the format {itag:url} to a list of (itag, url)
487         with the requested formats.
488         """
489         req_format = self._downloader.params.get('format', None)
490         format_limit = self._downloader.params.get('format_limit', None)
491         available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
492         if format_limit is not None and format_limit in available_formats:
493             format_list = available_formats[available_formats.index(format_limit):]
494         else:
495             format_list = available_formats
496         existing_formats = [x for x in format_list if x in url_map]
497         if len(existing_formats) == 0:
498             raise ExtractorError(u'no known formats available for video')
499         if self._downloader.params.get('listformats', None):
500             self._print_formats(existing_formats)
501             return
502         if req_format is None or req_format == 'best':
503             video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
504         elif req_format == 'worst':
505             video_url_list = [(existing_formats[-1], url_map[existing_formats[-1]])] # worst quality
506         elif req_format in ('-1', 'all'):
507             video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
508         else:
509             # Specific formats. We pick the first in a slash-delimeted sequence.
510             # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
511             req_formats = req_format.split('/')
512             video_url_list = None
513             for rf in req_formats:
514                 if rf in url_map:
515                     video_url_list = [(rf, url_map[rf])]
516                     break
517             if video_url_list is None:
518                 raise ExtractorError(u'requested format not available')
519         return video_url_list
520
521     def _extract_from_m3u8(self, manifest_url, video_id):
522         url_map = {}
523         def _get_urls(_manifest):
524             lines = _manifest.split('\n')
525             urls = filter(lambda l: l and not l.startswith('#'),
526                             lines)
527             return urls
528         manifest = self._download_webpage(manifest_url, video_id, u'Downloading formats manifest')
529         formats_urls = _get_urls(manifest)
530         for format_url in formats_urls:
531             itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
532             url_map[itag] = format_url
533         return url_map
534
535     def _real_extract(self, url):
536         if re.match(r'(?:https?://)?[^/]+/watch\?feature=[a-z_]+$', url):
537             self._downloader.report_warning(u'Did you forget to quote the URL? Remember that & is a meta-character in most shells, so you want to put the URL in quotes, like  youtube-dl \'http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc\' (or simply  youtube-dl BaW_jenozKc  ).')
538
539         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
540         mobj = re.search(self._NEXT_URL_RE, url)
541         if mobj:
542             url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
543         video_id = self._extract_id(url)
544
545         # Get video webpage
546         self.report_video_webpage_download(video_id)
547         url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
548         request = compat_urllib_request.Request(url)
549         try:
550             video_webpage_bytes = compat_urllib_request.urlopen(request).read()
551         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
552             raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
553
554         video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
555
556         # Attempt to extract SWF player URL
557         mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
558         if mobj is not None:
559             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
560         else:
561             player_url = None
562
563         # Get video info
564         self.report_video_info_webpage_download(video_id)
565         if re.search(r'player-age-gate-content">', video_webpage) is not None:
566             self.report_age_confirmation()
567             age_gate = True
568             # We simulate the access to the video from www.youtube.com/v/{video_id}
569             # this can be viewed without login into Youtube
570             data = compat_urllib_parse.urlencode({'video_id': video_id,
571                                                   'el': 'embedded',
572                                                   'gl': 'US',
573                                                   'hl': 'en',
574                                                   'eurl': 'https://youtube.googleapis.com/v/' + video_id,
575                                                   'asv': 3,
576                                                   'sts':'1588',
577                                                   })
578             video_info_url = 'https://www.youtube.com/get_video_info?' + data
579             video_info_webpage = self._download_webpage(video_info_url, video_id,
580                                     note=False,
581                                     errnote='unable to download video info webpage')
582             video_info = compat_parse_qs(video_info_webpage)
583         else:
584             age_gate = False
585             for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
586                 video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
587                         % (video_id, el_type))
588                 video_info_webpage = self._download_webpage(video_info_url, video_id,
589                                         note=False,
590                                         errnote='unable to download video info webpage')
591                 video_info = compat_parse_qs(video_info_webpage)
592                 if 'token' in video_info:
593                     break
594         if 'token' not in video_info:
595             if 'reason' in video_info:
596                 raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0], expected=True)
597             else:
598                 raise ExtractorError(u'"token" parameter not in video info for unknown reason')
599
600         # Check for "rental" videos
601         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
602             raise ExtractorError(u'"rental" videos not supported')
603
604         # Start extracting information
605         self.report_information_extraction(video_id)
606
607         # uploader
608         if 'author' not in video_info:
609             raise ExtractorError(u'Unable to extract uploader name')
610         video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
611
612         # uploader_id
613         video_uploader_id = None
614         mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
615         if mobj is not None:
616             video_uploader_id = mobj.group(1)
617         else:
618             self._downloader.report_warning(u'unable to extract uploader nickname')
619
620         # title
621         if 'title' not in video_info:
622             raise ExtractorError(u'Unable to extract video title')
623         video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
624
625         # thumbnail image
626         # We try first to get a high quality image:
627         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
628                             video_webpage, re.DOTALL)
629         if m_thumb is not None:
630             video_thumbnail = m_thumb.group(1)
631         elif 'thumbnail_url' not in video_info:
632             self._downloader.report_warning(u'unable to extract video thumbnail')
633             video_thumbnail = ''
634         else:   # don't panic if we can't find it
635             video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
636
637         # upload date
638         upload_date = None
639         mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
640         if mobj is not None:
641             upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
642             upload_date = unified_strdate(upload_date)
643
644         # description
645         video_description = get_element_by_id("eow-description", video_webpage)
646         if video_description:
647             video_description = clean_html(video_description)
648         else:
649             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
650             if fd_mobj:
651                 video_description = unescapeHTML(fd_mobj.group(1))
652             else:
653                 video_description = u''
654
655         # subtitles
656         video_subtitles = None
657
658         if self._downloader.params.get('writesubtitles', False):
659             video_subtitles = self._extract_subtitle(video_id)
660             if video_subtitles:
661                 (sub_error, sub_lang, sub) = video_subtitles[0]
662                 if sub_error:
663                     self._downloader.report_warning(sub_error)
664         
665         if self._downloader.params.get('writeautomaticsub', False):
666             video_subtitles = self._request_automatic_caption(video_id, video_webpage)
667             (sub_error, sub_lang, sub) = video_subtitles[0]
668             if sub_error:
669                 self._downloader.report_warning(sub_error)
670
671         if self._downloader.params.get('allsubtitles', False):
672             video_subtitles = self._extract_all_subtitles(video_id)
673             for video_subtitle in video_subtitles:
674                 (sub_error, sub_lang, sub) = video_subtitle
675                 if sub_error:
676                     self._downloader.report_warning(sub_error)
677
678         if self._downloader.params.get('listsubtitles', False):
679             self._list_available_subtitles(video_id)
680             return
681
682         if 'length_seconds' not in video_info:
683             self._downloader.report_warning(u'unable to extract video duration')
684             video_duration = ''
685         else:
686             video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
687
688         # Decide which formats to download
689
690         try:
691             mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
692             if not mobj:
693                 raise ValueError('Could not find vevo ID')
694             info = json.loads(mobj.group(1))
695             args = info['args']
696             # Easy way to know if the 's' value is in url_encoded_fmt_stream_map
697             # this signatures are encrypted
698             m_s = re.search(r'[&,]s=', args['url_encoded_fmt_stream_map'])
699             if m_s is not None:
700                 self.to_screen(u'%s: Encrypted signatures detected.' % video_id)
701                 video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
702         except ValueError:
703             pass
704
705         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
706             self.report_rtmp_download()
707             video_url_list = [(None, video_info['conn'][0])]
708         elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
709             if 'rtmpe%3Dyes' in video_info['url_encoded_fmt_stream_map'][0]:
710                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
711             url_map = {}
712             for url_data_str in video_info['url_encoded_fmt_stream_map'][0].split(','):
713                 url_data = compat_parse_qs(url_data_str)
714                 if 'itag' in url_data and 'url' in url_data:
715                     url = url_data['url'][0]
716                     if 'sig' in url_data:
717                         url += '&signature=' + url_data['sig'][0]
718                     elif 's' in url_data:
719                         if self._downloader.params.get('verbose'):
720                             s = url_data['s'][0]
721                             if age_gate:
722                                 player_version = self._search_regex(r'ad3-(.+?)\.swf',
723                                     video_info['ad3_module'][0] if 'ad3_module' in video_info else 'NOT FOUND',
724                                     'flash player', fatal=False)
725                                 player = 'flash player %s' % player_version
726                             else:
727                                 player = u'html5 player %s' % self._search_regex(r'html5player-(.+?)\.js', video_webpage,
728                                     'html5 player', fatal=False)
729                             parts_sizes = u'.'.join(compat_str(len(part)) for part in s.split('.'))
730                             self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
731                                 (len(s), parts_sizes, url_data['itag'][0], player))
732                         encrypted_sig = url_data['s'][0]
733                         if age_gate:
734                             signature = self._decrypt_signature_age_gate(encrypted_sig)
735                         else:
736                             signature = self._decrypt_signature(encrypted_sig)
737                         url += '&signature=' + signature
738                     if 'ratebypass' not in url:
739                         url += '&ratebypass=yes'
740                     url_map[url_data['itag'][0]] = url
741             video_url_list = self._get_video_url_list(url_map)
742             if not video_url_list:
743                 return
744         elif video_info.get('hlsvp'):
745             manifest_url = video_info['hlsvp'][0]
746             url_map = self._extract_from_m3u8(manifest_url, video_id)
747             video_url_list = self._get_video_url_list(url_map)
748             if not video_url_list:
749                 return
750
751         else:
752             raise ExtractorError(u'no conn or url_encoded_fmt_stream_map information found in video info')
753
754         results = []
755         for format_param, video_real_url in video_url_list:
756             # Extension
757             video_extension = self._video_extensions.get(format_param, 'flv')
758
759             video_format = '{0} - {1}{2}'.format(format_param if format_param else video_extension,
760                                               self._video_dimensions.get(format_param, '???'),
761                                               ' (3D)' if format_param in self._3d_itags else '')
762
763             results.append({
764                 'id':       video_id,
765                 'url':      video_real_url,
766                 'uploader': video_uploader,
767                 'uploader_id': video_uploader_id,
768                 'upload_date':  upload_date,
769                 'title':    video_title,
770                 'ext':      video_extension,
771                 'format':   video_format,
772                 'thumbnail':    video_thumbnail,
773                 'description':  video_description,
774                 'player_url':   player_url,
775                 'subtitles':    video_subtitles,
776                 'duration':     video_duration
777             })
778         return results
779
780 class YoutubePlaylistIE(InfoExtractor):
781     IE_DESC = u'YouTube.com playlists'
782     _VALID_URL = r"""(?:
783                         (?:https?://)?
784                         (?:\w+\.)?
785                         youtube\.com/
786                         (?:
787                            (?:course|view_play_list|my_playlists|artist|playlist|watch)
788                            \? (?:.*?&)*? (?:p|a|list)=
789                         |  p/
790                         )
791                         ((?:PL|EC|UU|FL)?[0-9A-Za-z-_]{10,})
792                         .*
793                      |
794                         ((?:PL|EC|UU|FL)[0-9A-Za-z-_]{10,})
795                      )"""
796     _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json&safeSearch=none'
797     _MAX_RESULTS = 50
798     IE_NAME = u'youtube:playlist'
799
800     @classmethod
801     def suitable(cls, url):
802         """Receives a URL and returns True if suitable for this IE."""
803         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
804
805     def _real_extract(self, url):
806         # Extract playlist id
807         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
808         if mobj is None:
809             raise ExtractorError(u'Invalid URL: %s' % url)
810
811         # Download playlist videos from API
812         playlist_id = mobj.group(1) or mobj.group(2)
813         videos = []
814
815         for page_num in itertools.count(1):
816             start_index = self._MAX_RESULTS * (page_num - 1) + 1
817             if start_index >= 1000:
818                 self._downloader.report_warning(u'Max number of results reached')
819                 break
820             url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, start_index)
821             page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
822
823             try:
824                 response = json.loads(page)
825             except ValueError as err:
826                 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
827
828             if 'feed' not in response:
829                 raise ExtractorError(u'Got a malformed response from YouTube API')
830             playlist_title = response['feed']['title']['$t']
831             if 'entry' not in response['feed']:
832                 # Number of videos is a multiple of self._MAX_RESULTS
833                 break
834
835             for entry in response['feed']['entry']:
836                 index = entry['yt$position']['$t']
837                 if 'media$group' in entry and 'media$player' in entry['media$group']:
838                     videos.append((index, entry['media$group']['media$player']['url']))
839
840         videos = [v[1] for v in sorted(videos)]
841
842         url_results = [self.url_result(vurl, 'Youtube') for vurl in videos]
843         return [self.playlist_result(url_results, playlist_id, playlist_title)]
844
845
846 class YoutubeChannelIE(InfoExtractor):
847     IE_DESC = u'YouTube.com channels'
848     _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
849     _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
850     _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
851     _MORE_PAGES_URL = 'http://www.youtube.com/c4_browse_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
852     IE_NAME = u'youtube:channel'
853
854     def extract_videos_from_page(self, page):
855         ids_in_page = []
856         for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
857             if mobj.group(1) not in ids_in_page:
858                 ids_in_page.append(mobj.group(1))
859         return ids_in_page
860
861     def _real_extract(self, url):
862         # Extract channel id
863         mobj = re.match(self._VALID_URL, url)
864         if mobj is None:
865             raise ExtractorError(u'Invalid URL: %s' % url)
866
867         # Download channel page
868         channel_id = mobj.group(1)
869         video_ids = []
870         pagenum = 1
871
872         url = self._TEMPLATE_URL % (channel_id, pagenum)
873         page = self._download_webpage(url, channel_id,
874                                       u'Downloading page #%s' % pagenum)
875
876         # Extract video identifiers
877         ids_in_page = self.extract_videos_from_page(page)
878         video_ids.extend(ids_in_page)
879
880         # Download any subsequent channel pages using the json-based channel_ajax query
881         if self._MORE_PAGES_INDICATOR in page:
882             for pagenum in itertools.count(1):
883                 url = self._MORE_PAGES_URL % (pagenum, channel_id)
884                 page = self._download_webpage(url, channel_id,
885                                               u'Downloading page #%s' % pagenum)
886
887                 page = json.loads(page)
888
889                 ids_in_page = self.extract_videos_from_page(page['content_html'])
890                 video_ids.extend(ids_in_page)
891
892                 if self._MORE_PAGES_INDICATOR  not in page['load_more_widget_html']:
893                     break
894
895         self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
896
897         urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
898         url_entries = [self.url_result(eurl, 'Youtube') for eurl in urls]
899         return [self.playlist_result(url_entries, channel_id)]
900
901
902 class YoutubeUserIE(InfoExtractor):
903     IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
904     _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
905     _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
906     _GDATA_PAGE_SIZE = 50
907     _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
908     _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
909     IE_NAME = u'youtube:user'
910
911     def _real_extract(self, url):
912         # Extract username
913         mobj = re.match(self._VALID_URL, url)
914         if mobj is None:
915             raise ExtractorError(u'Invalid URL: %s' % url)
916
917         username = mobj.group(1)
918
919         # Download video ids using YouTube Data API. Result size per
920         # query is limited (currently to 50 videos) so we need to query
921         # page by page until there are no video ids - it means we got
922         # all of them.
923
924         video_ids = []
925
926         for pagenum in itertools.count(0):
927             start_index = pagenum * self._GDATA_PAGE_SIZE + 1
928
929             gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
930             page = self._download_webpage(gdata_url, username,
931                                           u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
932
933             # Extract video identifiers
934             ids_in_page = []
935
936             for mobj in re.finditer(self._VIDEO_INDICATOR, page):
937                 if mobj.group(1) not in ids_in_page:
938                     ids_in_page.append(mobj.group(1))
939
940             video_ids.extend(ids_in_page)
941
942             # A little optimization - if current page is not
943             # "full", ie. does not contain PAGE_SIZE video ids then
944             # we can assume that this page is the last one - there
945             # are no more ids on further pages - no need to query
946             # again.
947
948             if len(ids_in_page) < self._GDATA_PAGE_SIZE:
949                 break
950
951         urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
952         url_results = [self.url_result(rurl, 'Youtube') for rurl in urls]
953         return [self.playlist_result(url_results, playlist_title = username)]
954
955 class YoutubeSearchIE(SearchInfoExtractor):
956     IE_DESC = u'YouTube.com searches'
957     _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
958     _MAX_RESULTS = 1000
959     IE_NAME = u'youtube:search'
960     _SEARCH_KEY = 'ytsearch'
961
962     def report_download_page(self, query, pagenum):
963         """Report attempt to download search page with given number."""
964         self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
965
966     def _get_n_results(self, query, n):
967         """Get a specified number of results for a query"""
968
969         video_ids = []
970         pagenum = 0
971         limit = n
972
973         while (50 * pagenum) < limit:
974             self.report_download_page(query, pagenum+1)
975             result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
976             request = compat_urllib_request.Request(result_url)
977             try:
978                 data = compat_urllib_request.urlopen(request).read().decode('utf-8')
979             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
980                 raise ExtractorError(u'Unable to download API page: %s' % compat_str(err))
981             api_response = json.loads(data)['data']
982
983             if not 'items' in api_response:
984                 raise ExtractorError(u'[youtube] No video results')
985
986             new_ids = list(video['id'] for video in api_response['items'])
987             video_ids += new_ids
988
989             limit = min(n, api_response['totalItems'])
990             pagenum += 1
991
992         if len(video_ids) > n:
993             video_ids = video_ids[:n]
994         videos = [self.url_result('http://www.youtube.com/watch?v=%s' % id, 'Youtube') for id in video_ids]
995         return self.playlist_result(videos, query)
996
997
998 class YoutubeShowIE(InfoExtractor):
999     IE_DESC = u'YouTube.com (multi-season) shows'
1000     _VALID_URL = r'https?://www\.youtube\.com/show/(.*)'
1001     IE_NAME = u'youtube:show'
1002
1003     def _real_extract(self, url):
1004         mobj = re.match(self._VALID_URL, url)
1005         show_name = mobj.group(1)
1006         webpage = self._download_webpage(url, show_name, u'Downloading show webpage')
1007         # There's one playlist for each season of the show
1008         m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
1009         self.to_screen(u'%s: Found %s seasons' % (show_name, len(m_seasons)))
1010         return [self.url_result('https://www.youtube.com' + season.group(1), 'YoutubePlaylist') for season in m_seasons]
1011
1012
1013 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
1014     """
1015     Base class for extractors that fetch info from
1016     http://www.youtube.com/feed_ajax
1017     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
1018     """
1019     _LOGIN_REQUIRED = True
1020     _PAGING_STEP = 30
1021     # use action_load_personal_feed instead of action_load_system_feed
1022     _PERSONAL_FEED = False
1023
1024     @property
1025     def _FEED_TEMPLATE(self):
1026         action = 'action_load_system_feed'
1027         if self._PERSONAL_FEED:
1028             action = 'action_load_personal_feed'
1029         return 'http://www.youtube.com/feed_ajax?%s=1&feed_name=%s&paging=%%s' % (action, self._FEED_NAME)
1030
1031     @property
1032     def IE_NAME(self):
1033         return u'youtube:%s' % self._FEED_NAME
1034
1035     def _real_initialize(self):
1036         self._login()
1037
1038     def _real_extract(self, url):
1039         feed_entries = []
1040         # The step argument is available only in 2.7 or higher
1041         for i in itertools.count(0):
1042             paging = i*self._PAGING_STEP
1043             info = self._download_webpage(self._FEED_TEMPLATE % paging,
1044                                           u'%s feed' % self._FEED_NAME,
1045                                           u'Downloading page %s' % i)
1046             info = json.loads(info)
1047             feed_html = info['feed_html']
1048             m_ids = re.finditer(r'"/watch\?v=(.*?)["&]', feed_html)
1049             ids = orderedSet(m.group(1) for m in m_ids)
1050             feed_entries.extend(self.url_result(id, 'Youtube') for id in ids)
1051             if info['paging'] is None:
1052                 break
1053         return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
1054
1055 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
1056     IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
1057     _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
1058     _FEED_NAME = 'subscriptions'
1059     _PLAYLIST_TITLE = u'Youtube Subscriptions'
1060
1061 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
1062     IE_DESC = u'YouTube.com recommended videos, "ytrec" keyword (requires authentication)'
1063     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
1064     _FEED_NAME = 'recommended'
1065     _PLAYLIST_TITLE = u'Youtube Recommended videos'
1066
1067 class YoutubeWatchLaterIE(YoutubeFeedsInfoExtractor):
1068     IE_DESC = u'Youtube watch later list, "ytwatchlater" keyword (requires authentication)'
1069     _VALID_URL = r'https?://www\.youtube\.com/feed/watch_later|:ytwatchlater'
1070     _FEED_NAME = 'watch_later'
1071     _PLAYLIST_TITLE = u'Youtube Watch Later'
1072     _PAGING_STEP = 100
1073     _PERSONAL_FEED = True
1074
1075 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
1076     IE_NAME = u'youtube:favorites'
1077     IE_DESC = u'YouTube.com favourite videos, "ytfav" keyword (requires authentication)'
1078     _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:o?rites)?'
1079     _LOGIN_REQUIRED = True
1080
1081     def _real_extract(self, url):
1082         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
1083         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, u'favourites playlist id')
1084         return self.url_result(playlist_id, 'YoutubePlaylist')