2 from __future__ import absolute_import
9 from .common import InfoExtractor
15 compat_urllib_request,
26 class YoutubeIE(InfoExtractor):
27 """Information extractor for youtube.com."""
31 (?:https?://)? # http(s):// (optional)
32 (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
33 tube\.majestyc\.net/) # the various hostnames, with wildcard subdomains
34 (?:.*?\#/)? # handle anchor (#/) redirect urls
35 (?: # the various things that can precede the ID:
36 (?:(?:v|embed|e)/) # v/ or embed/ or e/
37 |(?: # or the v= param in all its forms
38 (?:watch(?:_popup)?(?:\.php)?)? # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
39 (?:\?|\#!?) # the params delimiter ? or # or #!
40 (?:.*?&)? # any other preceding param (like /?s=tuff&v=xxxx)
43 )? # optional -> youtube.com/xxxx is OK
44 )? # all until now is optional -> you can pass the naked ID
45 ([0-9A-Za-z_-]+) # here is it! the YouTube video ID
46 (?(1).+)? # if we found the ID, everything can follow
48 _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
49 _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
50 _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
51 _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
52 _NETRC_MACHINE = 'youtube'
53 # Listed in order of quality
54 _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
55 _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
62 '38': 'video', # You actually don't know if this will be MOV, AVI or whatever
87 def suitable(cls, url):
88 """Receives a URL and returns True if suitable for this IE."""
89 if YoutubePlaylistIE.suitable(url): return False
90 return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
92 def report_lang(self):
93 """Report attempt to set language."""
94 self.to_screen(u'Setting language')
96 def report_login(self):
97 """Report attempt to log in."""
98 self.to_screen(u'Logging in')
100 def report_video_webpage_download(self, video_id):
101 """Report attempt to download video webpage."""
102 self.to_screen(u'%s: Downloading video webpage' % video_id)
104 def report_video_info_webpage_download(self, video_id):
105 """Report attempt to download video info webpage."""
106 self.to_screen(u'%s: Downloading video info webpage' % video_id)
108 def report_video_subtitles_download(self, video_id):
109 """Report attempt to download video info webpage."""
110 self.to_screen(u'%s: Checking available subtitles' % video_id)
112 def report_video_subtitles_request(self, video_id, sub_lang, format):
113 """Report attempt to download video info webpage."""
114 self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
116 def report_video_subtitles_available(self, video_id, sub_lang_list):
117 """Report available subtitles."""
118 sub_lang = ",".join(list(sub_lang_list.keys()))
119 self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
121 def report_information_extraction(self, video_id):
122 """Report attempt to extract video information."""
123 self.to_screen(u'%s: Extracting video information' % video_id)
125 def report_unavailable_format(self, video_id, format):
126 """Report extracted video URL."""
127 self.to_screen(u'%s: Format %s not available' % (video_id, format))
129 def report_rtmp_download(self):
130 """Indicate the download will use the RTMP protocol."""
131 self.to_screen(u'RTMP download detected')
134 def _decrypt_signature(s):
135 """Decrypt the key the two subkeys must have a length of 43"""
137 if len(a) != 43 or len(b) != 43:
138 raise ExtractorError(u'Unable to decrypt signature, subkeys lengths not valid')
139 b = ''.join([b[:8],a[0],b[9:18],b[-4],b[19:39], b[18]])[0:40]
141 s_dec = '.'.join((a,b))[::-1]
144 def _get_available_subtitles(self, video_id):
145 self.report_video_subtitles_download(video_id)
146 request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
148 sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
149 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
150 return (u'unable to download video subtitles: %s' % compat_str(err), None)
151 sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
152 sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
153 if not sub_lang_list:
154 return (u'video doesn\'t have subtitles', None)
157 def _list_available_subtitles(self, video_id):
158 sub_lang_list = self._get_available_subtitles(video_id)
159 self.report_video_subtitles_available(video_id, sub_lang_list)
161 def _request_subtitle(self, sub_lang, sub_name, video_id, format):
164 (error_message, sub_lang, sub)
166 self.report_video_subtitles_request(video_id, sub_lang, format)
167 params = compat_urllib_parse.urlencode({
173 url = 'http://www.youtube.com/api/timedtext?' + params
175 sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
176 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
177 return (u'unable to download video subtitles: %s' % compat_str(err), None, None)
179 return (u'Did not fetch video subtitles', None, None)
180 return (None, sub_lang, sub)
182 def _request_automatic_caption(self, video_id, webpage):
183 """We need the webpage for getting the captions url, pass it as an
184 argument to speed up the process."""
185 sub_lang = self._downloader.params.get('subtitleslang') or 'en'
186 sub_format = self._downloader.params.get('subtitlesformat')
187 self.to_screen(u'%s: Looking for automatic captions' % video_id)
188 mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
189 err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
191 return [(err_msg, None, None)]
192 player_config = json.loads(mobj.group(1))
194 args = player_config[u'args']
195 caption_url = args[u'ttsurl']
196 timestamp = args[u'timestamp']
197 params = compat_urllib_parse.urlencode({
204 subtitles_url = caption_url + '&' + params
205 sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
206 return [(None, sub_lang, sub)]
208 return [(err_msg, None, None)]
210 def _extract_subtitle(self, video_id):
212 Return a list with a tuple:
213 [(error_message, sub_lang, sub)]
215 sub_lang_list = self._get_available_subtitles(video_id)
216 sub_format = self._downloader.params.get('subtitlesformat')
217 if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
218 return [(sub_lang_list[0], None, None)]
219 if self._downloader.params.get('subtitleslang', False):
220 sub_lang = self._downloader.params.get('subtitleslang')
221 elif 'en' in sub_lang_list:
224 sub_lang = list(sub_lang_list.keys())[0]
225 if not sub_lang in sub_lang_list:
226 return [(u'no closed captions found in the specified language "%s"' % sub_lang, None, None)]
228 subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
231 def _extract_all_subtitles(self, video_id):
232 sub_lang_list = self._get_available_subtitles(video_id)
233 sub_format = self._downloader.params.get('subtitlesformat')
234 if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
235 return [(sub_lang_list[0], None, None)]
237 for sub_lang in sub_lang_list:
238 subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
239 subtitles.append(subtitle)
242 def _print_formats(self, formats):
243 print('Available formats:')
245 print('%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???')))
247 def _real_initialize(self):
248 if self._downloader is None:
253 downloader_params = self._downloader.params
255 # Attempt to use provided username and password or .netrc data
256 if downloader_params.get('username', None) is not None:
257 username = downloader_params['username']
258 password = downloader_params['password']
259 elif downloader_params.get('usenetrc', False):
261 info = netrc.netrc().authenticators(self._NETRC_MACHINE)
266 raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
267 except (IOError, netrc.NetrcParseError) as err:
268 self._downloader.report_warning(u'parsing .netrc: %s' % compat_str(err))
272 request = compat_urllib_request.Request(self._LANG_URL)
275 compat_urllib_request.urlopen(request).read()
276 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
277 self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
280 # No authentication to be performed
284 request = compat_urllib_request.Request(self._LOGIN_URL)
286 login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
287 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
288 self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
293 match = re.search(re.compile(r'<input.+?name="GALX".+?value="(.+?)"', re.DOTALL), login_page)
295 galx = match.group(1)
297 match = re.search(re.compile(r'<input.+?name="dsh".+?value="(.+?)"', re.DOTALL), login_page)
303 u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
307 u'PersistentCookie': u'yes',
309 u'bgresponse': u'js_disabled',
310 u'checkConnection': u'',
311 u'checkedDomains': u'youtube',
317 u'signIn': u'Sign in',
319 u'service': u'youtube',
323 # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
325 login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
326 login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
327 request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
330 login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
331 if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
332 self._downloader.report_warning(u'unable to log in: bad username or password')
334 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
335 self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
341 'action_confirm': 'Confirm',
343 request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
345 self.report_age_confirmation()
346 age_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
347 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
348 raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
350 def _extract_id(self, url):
351 mobj = re.match(self._VALID_URL, url, re.VERBOSE)
353 raise ExtractorError(u'Invalid URL: %s' % url)
354 video_id = mobj.group(2)
357 def _real_extract(self, url):
358 # Extract original video URL from URL with redirection, like age verification, using next_url parameter
359 mobj = re.search(self._NEXT_URL_RE, url)
361 url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
362 video_id = self._extract_id(url)
365 self.report_video_webpage_download(video_id)
366 url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
367 request = compat_urllib_request.Request(url)
369 video_webpage_bytes = compat_urllib_request.urlopen(request).read()
370 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
371 raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
373 video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
375 # Attempt to extract SWF player URL
376 mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
378 player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
383 self.report_video_info_webpage_download(video_id)
384 for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
385 video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
386 % (video_id, el_type))
387 video_info_webpage = self._download_webpage(video_info_url, video_id,
389 errnote='unable to download video info webpage')
390 video_info = compat_parse_qs(video_info_webpage)
391 if 'token' in video_info:
393 if 'token' not in video_info:
394 if 'reason' in video_info:
395 raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0])
397 raise ExtractorError(u'"token" parameter not in video info for unknown reason')
399 # Check for "rental" videos
400 if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
401 raise ExtractorError(u'"rental" videos not supported')
403 # Start extracting information
404 self.report_information_extraction(video_id)
407 if 'author' not in video_info:
408 raise ExtractorError(u'Unable to extract uploader name')
409 video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
412 video_uploader_id = None
413 mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
415 video_uploader_id = mobj.group(1)
417 self._downloader.report_warning(u'unable to extract uploader nickname')
420 if 'title' not in video_info:
421 raise ExtractorError(u'Unable to extract video title')
422 video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
425 if 'thumbnail_url' not in video_info:
426 self._downloader.report_warning(u'unable to extract video thumbnail')
428 else: # don't panic if we can't find it
429 video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
433 mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
435 upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
436 upload_date = unified_strdate(upload_date)
439 video_description = get_element_by_id("eow-description", video_webpage)
440 if video_description:
441 video_description = clean_html(video_description)
443 fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
445 video_description = unescapeHTML(fd_mobj.group(1))
447 video_description = u''
450 video_subtitles = None
452 if self._downloader.params.get('writesubtitles', False):
453 video_subtitles = self._extract_subtitle(video_id)
455 (sub_error, sub_lang, sub) = video_subtitles[0]
457 # We try with the automatic captions
458 video_subtitles = self._request_automatic_caption(video_id, video_webpage)
459 (sub_error_auto, sub_lang, sub) = video_subtitles[0]
463 # We report the original error
464 self._downloader.report_warning(sub_error)
466 if self._downloader.params.get('allsubtitles', False):
467 video_subtitles = self._extract_all_subtitles(video_id)
468 for video_subtitle in video_subtitles:
469 (sub_error, sub_lang, sub) = video_subtitle
471 self._downloader.report_warning(sub_error)
473 if self._downloader.params.get('listsubtitles', False):
474 sub_lang_list = self._list_available_subtitles(video_id)
477 if 'length_seconds' not in video_info:
478 self._downloader.report_warning(u'unable to extract video duration')
481 video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
484 video_token = compat_urllib_parse.unquote_plus(video_info['token'][0])
486 # Decide which formats to download
487 req_format = self._downloader.params.get('format', None)
490 mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
491 info = json.loads(mobj.group(1))
493 if args.get('ptk','') == 'vevo' or 'dashmpd':
494 # Vevo videos with encrypted signatures
495 self.to_screen(u'%s: Vevo video detected.' % video_id)
496 video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
500 if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
501 self.report_rtmp_download()
502 video_url_list = [(None, video_info['conn'][0])]
503 elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
505 for url_data_str in video_info['url_encoded_fmt_stream_map'][0].split(','):
506 url_data = compat_parse_qs(url_data_str)
507 if 'itag' in url_data and 'url' in url_data:
508 url = url_data['url'][0]
509 if 'sig' in url_data:
510 url += '&signature=' + url_data['sig'][0]
511 elif 's' in url_data:
512 signature = self._decrypt_signature(url_data['s'][0])
513 url += '&signature=' + signature
514 if 'ratebypass' not in url:
515 url += '&ratebypass=yes'
516 url_map[url_data['itag'][0]] = url
518 format_limit = self._downloader.params.get('format_limit', None)
519 available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
520 if format_limit is not None and format_limit in available_formats:
521 format_list = available_formats[available_formats.index(format_limit):]
523 format_list = available_formats
524 existing_formats = [x for x in format_list if x in url_map]
525 if len(existing_formats) == 0:
526 raise ExtractorError(u'no known formats available for video')
527 if self._downloader.params.get('listformats', None):
528 self._print_formats(existing_formats)
530 if req_format is None or req_format == 'best':
531 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
532 elif req_format == 'worst':
533 video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
534 elif req_format in ('-1', 'all'):
535 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
537 # Specific formats. We pick the first in a slash-delimeted sequence.
538 # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
539 req_formats = req_format.split('/')
540 video_url_list = None
541 for rf in req_formats:
543 video_url_list = [(rf, url_map[rf])]
545 if video_url_list is None:
546 raise ExtractorError(u'requested format not available')
548 raise ExtractorError(u'no conn or url_encoded_fmt_stream_map information found in video info')
551 for format_param, video_real_url in video_url_list:
553 video_extension = self._video_extensions.get(format_param, 'flv')
555 video_format = '{0} - {1}'.format(format_param if format_param else video_extension,
556 self._video_dimensions.get(format_param, '???'))
560 'url': video_real_url,
561 'uploader': video_uploader,
562 'uploader_id': video_uploader_id,
563 'upload_date': upload_date,
564 'title': video_title,
565 'ext': video_extension,
566 'format': video_format,
567 'thumbnail': video_thumbnail,
568 'description': video_description,
569 'player_url': player_url,
570 'subtitles': video_subtitles,
571 'duration': video_duration
575 class YoutubePlaylistIE(InfoExtractor):
576 """Information Extractor for YouTube playlists."""
583 (?:course|view_play_list|my_playlists|artist|playlist|watch)
584 \? (?:.*?&)*? (?:p|a|list)=
587 ((?:PL|EC|UU)?[0-9A-Za-z-_]{10,})
590 ((?:PL|EC|UU)[0-9A-Za-z-_]{10,})
592 _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json&safeSearch=none'
594 IE_NAME = u'youtube:playlist'
597 def suitable(cls, url):
598 """Receives a URL and returns True if suitable for this IE."""
599 return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
601 def _real_extract(self, url):
602 # Extract playlist id
603 mobj = re.match(self._VALID_URL, url, re.VERBOSE)
605 raise ExtractorError(u'Invalid URL: %s' % url)
607 # Download playlist videos from API
608 playlist_id = mobj.group(1) or mobj.group(2)
613 url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, self._MAX_RESULTS * (page_num - 1) + 1)
614 page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
617 response = json.loads(page)
618 except ValueError as err:
619 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
621 if 'feed' not in response:
622 raise ExtractorError(u'Got a malformed response from YouTube API')
623 playlist_title = response['feed']['title']['$t']
624 if 'entry' not in response['feed']:
625 # Number of videos is a multiple of self._MAX_RESULTS
628 for entry in response['feed']['entry']:
629 index = entry['yt$position']['$t']
630 if 'media$group' in entry and 'media$player' in entry['media$group']:
631 videos.append((index, entry['media$group']['media$player']['url']))
633 if len(response['feed']['entry']) < self._MAX_RESULTS:
637 videos = [v[1] for v in sorted(videos)]
639 url_results = [self.url_result(url, 'Youtube') for url in videos]
640 return [self.playlist_result(url_results, playlist_id, playlist_title)]
643 class YoutubeChannelIE(InfoExtractor):
644 """Information Extractor for YouTube channels."""
646 _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
647 _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
648 _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
649 _MORE_PAGES_URL = 'http://www.youtube.com/channel_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
650 IE_NAME = u'youtube:channel'
652 def extract_videos_from_page(self, page):
654 for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
655 if mobj.group(1) not in ids_in_page:
656 ids_in_page.append(mobj.group(1))
659 def _real_extract(self, url):
661 mobj = re.match(self._VALID_URL, url)
663 raise ExtractorError(u'Invalid URL: %s' % url)
665 # Download channel page
666 channel_id = mobj.group(1)
670 url = self._TEMPLATE_URL % (channel_id, pagenum)
671 page = self._download_webpage(url, channel_id,
672 u'Downloading page #%s' % pagenum)
674 # Extract video identifiers
675 ids_in_page = self.extract_videos_from_page(page)
676 video_ids.extend(ids_in_page)
678 # Download any subsequent channel pages using the json-based channel_ajax query
679 if self._MORE_PAGES_INDICATOR in page:
681 pagenum = pagenum + 1
683 url = self._MORE_PAGES_URL % (pagenum, channel_id)
684 page = self._download_webpage(url, channel_id,
685 u'Downloading page #%s' % pagenum)
687 page = json.loads(page)
689 ids_in_page = self.extract_videos_from_page(page['content_html'])
690 video_ids.extend(ids_in_page)
692 if self._MORE_PAGES_INDICATOR not in page['load_more_widget_html']:
695 self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
697 urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
698 url_entries = [self.url_result(url, 'Youtube') for url in urls]
699 return [self.playlist_result(url_entries, channel_id)]
702 class YoutubeUserIE(InfoExtractor):
703 """Information Extractor for YouTube users."""
705 _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
706 _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
707 _GDATA_PAGE_SIZE = 50
708 _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
709 _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
710 IE_NAME = u'youtube:user'
712 def _real_extract(self, url):
714 mobj = re.match(self._VALID_URL, url)
716 raise ExtractorError(u'Invalid URL: %s' % url)
718 username = mobj.group(1)
720 # Download video ids using YouTube Data API. Result size per
721 # query is limited (currently to 50 videos) so we need to query
722 # page by page until there are no video ids - it means we got
729 start_index = pagenum * self._GDATA_PAGE_SIZE + 1
731 gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
732 page = self._download_webpage(gdata_url, username,
733 u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
735 # Extract video identifiers
738 for mobj in re.finditer(self._VIDEO_INDICATOR, page):
739 if mobj.group(1) not in ids_in_page:
740 ids_in_page.append(mobj.group(1))
742 video_ids.extend(ids_in_page)
744 # A little optimization - if current page is not
745 # "full", ie. does not contain PAGE_SIZE video ids then
746 # we can assume that this page is the last one - there
747 # are no more ids on further pages - no need to query
750 if len(ids_in_page) < self._GDATA_PAGE_SIZE:
755 urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
756 url_results = [self.url_result(url, 'Youtube') for url in urls]
757 return [self.playlist_result(url_results, playlist_title = username)]