8 from .common import InfoExtractor, SearchInfoExtractor
14 compat_urllib_request,
25 class YoutubeIE(InfoExtractor):
26 """Information extractor for youtube.com."""
30 (?:https?://)? # http(s):// (optional)
31 (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
32 tube\.majestyc\.net/) # the various hostnames, with wildcard subdomains
33 (?:.*?\#/)? # handle anchor (#/) redirect urls
34 (?: # the various things that can precede the ID:
35 (?:(?:v|embed|e)/) # v/ or embed/ or e/
36 |(?: # or the v= param in all its forms
37 (?:watch(?:_popup)?(?:\.php)?)? # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
38 (?:\?|\#!?) # the params delimiter ? or # or #!
39 (?:.*?&)? # any other preceding param (like /?s=tuff&v=xxxx)
42 )? # optional -> youtube.com/xxxx is OK
43 )? # all until now is optional -> you can pass the naked ID
44 ([0-9A-Za-z_-]+) # here is it! the YouTube video ID
45 (?(1).+)? # if we found the ID, everything can follow
47 _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
48 _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
49 _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
50 _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
51 _NETRC_MACHINE = 'youtube'
52 # Listed in order of quality
53 _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
54 _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
86 def suitable(cls, url):
87 """Receives a URL and returns True if suitable for this IE."""
88 if YoutubePlaylistIE.suitable(url): return False
89 return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
91 def report_lang(self):
92 """Report attempt to set language."""
93 self.to_screen(u'Setting language')
95 def report_login(self):
96 """Report attempt to log in."""
97 self.to_screen(u'Logging in')
99 def report_video_webpage_download(self, video_id):
100 """Report attempt to download video webpage."""
101 self.to_screen(u'%s: Downloading video webpage' % video_id)
103 def report_video_info_webpage_download(self, video_id):
104 """Report attempt to download video info webpage."""
105 self.to_screen(u'%s: Downloading video info webpage' % video_id)
107 def report_video_subtitles_download(self, video_id):
108 """Report attempt to download video info webpage."""
109 self.to_screen(u'%s: Checking available subtitles' % video_id)
111 def report_video_subtitles_request(self, video_id, sub_lang, format):
112 """Report attempt to download video info webpage."""
113 self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
115 def report_video_subtitles_available(self, video_id, sub_lang_list):
116 """Report available subtitles."""
117 sub_lang = ",".join(list(sub_lang_list.keys()))
118 self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
120 def report_information_extraction(self, video_id):
121 """Report attempt to extract video information."""
122 self.to_screen(u'%s: Extracting video information' % video_id)
124 def report_unavailable_format(self, video_id, format):
125 """Report extracted video URL."""
126 self.to_screen(u'%s: Format %s not available' % (video_id, format))
128 def report_rtmp_download(self):
129 """Indicate the download will use the RTMP protocol."""
130 self.to_screen(u'RTMP download detected')
133 def _decrypt_signature(s):
134 """Decrypt the key the two subkeys must have a length of 43"""
136 if len(a) != 43 or len(b) != 43:
137 raise ExtractorError(u'Unable to decrypt signature, subkeys lengths not valid')
138 b = ''.join([b[:8],a[0],b[9:18],b[-4],b[19:39], b[18]])[0:40]
140 s_dec = '.'.join((a,b))[::-1]
143 def _get_available_subtitles(self, video_id):
144 self.report_video_subtitles_download(video_id)
145 request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
147 sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
148 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
149 return (u'unable to download video subtitles: %s' % compat_str(err), None)
150 sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
151 sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
152 if not sub_lang_list:
153 return (u'video doesn\'t have subtitles', None)
156 def _list_available_subtitles(self, video_id):
157 sub_lang_list = self._get_available_subtitles(video_id)
158 self.report_video_subtitles_available(video_id, sub_lang_list)
160 def _request_subtitle(self, sub_lang, sub_name, video_id, format):
163 (error_message, sub_lang, sub)
165 self.report_video_subtitles_request(video_id, sub_lang, format)
166 params = compat_urllib_parse.urlencode({
172 url = 'http://www.youtube.com/api/timedtext?' + params
174 sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
175 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
176 return (u'unable to download video subtitles: %s' % compat_str(err), None, None)
178 return (u'Did not fetch video subtitles', None, None)
179 return (None, sub_lang, sub)
181 def _request_automatic_caption(self, video_id, webpage):
182 """We need the webpage for getting the captions url, pass it as an
183 argument to speed up the process."""
184 sub_lang = self._downloader.params.get('subtitleslang') or 'en'
185 sub_format = self._downloader.params.get('subtitlesformat')
186 self.to_screen(u'%s: Looking for automatic captions' % video_id)
187 mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
188 err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
190 return [(err_msg, None, None)]
191 player_config = json.loads(mobj.group(1))
193 args = player_config[u'args']
194 caption_url = args[u'ttsurl']
195 timestamp = args[u'timestamp']
196 params = compat_urllib_parse.urlencode({
203 subtitles_url = caption_url + '&' + params
204 sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
205 return [(None, sub_lang, sub)]
207 return [(err_msg, None, None)]
209 def _extract_subtitle(self, video_id):
211 Return a list with a tuple:
212 [(error_message, sub_lang, sub)]
214 sub_lang_list = self._get_available_subtitles(video_id)
215 sub_format = self._downloader.params.get('subtitlesformat')
216 if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
217 return [(sub_lang_list[0], None, None)]
218 if self._downloader.params.get('subtitleslang', False):
219 sub_lang = self._downloader.params.get('subtitleslang')
220 elif 'en' in sub_lang_list:
223 sub_lang = list(sub_lang_list.keys())[0]
224 if not sub_lang in sub_lang_list:
225 return [(u'no closed captions found in the specified language "%s"' % sub_lang, None, None)]
227 subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
230 def _extract_all_subtitles(self, video_id):
231 sub_lang_list = self._get_available_subtitles(video_id)
232 sub_format = self._downloader.params.get('subtitlesformat')
233 if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
234 return [(sub_lang_list[0], None, None)]
236 for sub_lang in sub_lang_list:
237 subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
238 subtitles.append(subtitle)
241 def _print_formats(self, formats):
242 print('Available formats:')
244 print('%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???')))
246 def _real_initialize(self):
247 if self._downloader is None:
252 downloader_params = self._downloader.params
254 # Attempt to use provided username and password or .netrc data
255 if downloader_params.get('username', None) is not None:
256 username = downloader_params['username']
257 password = downloader_params['password']
258 elif downloader_params.get('usenetrc', False):
260 info = netrc.netrc().authenticators(self._NETRC_MACHINE)
265 raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
266 except (IOError, netrc.NetrcParseError) as err:
267 self._downloader.report_warning(u'parsing .netrc: %s' % compat_str(err))
271 request = compat_urllib_request.Request(self._LANG_URL)
274 compat_urllib_request.urlopen(request).read()
275 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
276 self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
279 # No authentication to be performed
283 request = compat_urllib_request.Request(self._LOGIN_URL)
285 login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
286 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
287 self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
292 match = re.search(re.compile(r'<input.+?name="GALX".+?value="(.+?)"', re.DOTALL), login_page)
294 galx = match.group(1)
296 match = re.search(re.compile(r'<input.+?name="dsh".+?value="(.+?)"', re.DOTALL), login_page)
302 u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
306 u'PersistentCookie': u'yes',
308 u'bgresponse': u'js_disabled',
309 u'checkConnection': u'',
310 u'checkedDomains': u'youtube',
316 u'signIn': u'Sign in',
318 u'service': u'youtube',
322 # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
324 login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
325 login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
326 request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
329 login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
330 if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
331 self._downloader.report_warning(u'unable to log in: bad username or password')
333 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
334 self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
340 'action_confirm': 'Confirm',
342 request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
344 self.report_age_confirmation()
345 compat_urllib_request.urlopen(request).read().decode('utf-8')
346 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
347 raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
349 def _extract_id(self, url):
350 mobj = re.match(self._VALID_URL, url, re.VERBOSE)
352 raise ExtractorError(u'Invalid URL: %s' % url)
353 video_id = mobj.group(2)
356 def _real_extract(self, url):
357 # Extract original video URL from URL with redirection, like age verification, using next_url parameter
358 mobj = re.search(self._NEXT_URL_RE, url)
360 url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
361 video_id = self._extract_id(url)
364 self.report_video_webpage_download(video_id)
365 url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
366 request = compat_urllib_request.Request(url)
368 video_webpage_bytes = compat_urllib_request.urlopen(request).read()
369 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
370 raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
372 video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
374 # Attempt to extract SWF player URL
375 mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
377 player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
382 self.report_video_info_webpage_download(video_id)
383 for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
384 video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
385 % (video_id, el_type))
386 video_info_webpage = self._download_webpage(video_info_url, video_id,
388 errnote='unable to download video info webpage')
389 video_info = compat_parse_qs(video_info_webpage)
390 if 'token' in video_info:
392 if 'token' not in video_info:
393 if 'reason' in video_info:
394 raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0])
396 raise ExtractorError(u'"token" parameter not in video info for unknown reason')
398 # Check for "rental" videos
399 if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
400 raise ExtractorError(u'"rental" videos not supported')
402 # Start extracting information
403 self.report_information_extraction(video_id)
406 if 'author' not in video_info:
407 raise ExtractorError(u'Unable to extract uploader name')
408 video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
411 video_uploader_id = None
412 mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
414 video_uploader_id = mobj.group(1)
416 self._downloader.report_warning(u'unable to extract uploader nickname')
419 if 'title' not in video_info:
420 raise ExtractorError(u'Unable to extract video title')
421 video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
424 if 'thumbnail_url' not in video_info:
425 self._downloader.report_warning(u'unable to extract video thumbnail')
427 else: # don't panic if we can't find it
428 video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
432 mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
434 upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
435 upload_date = unified_strdate(upload_date)
438 video_description = get_element_by_id("eow-description", video_webpage)
439 if video_description:
440 video_description = clean_html(video_description)
442 fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
444 video_description = unescapeHTML(fd_mobj.group(1))
446 video_description = u''
449 video_subtitles = None
451 if self._downloader.params.get('writesubtitles', False):
452 video_subtitles = self._extract_subtitle(video_id)
454 (sub_error, sub_lang, sub) = video_subtitles[0]
456 # We try with the automatic captions
457 video_subtitles = self._request_automatic_caption(video_id, video_webpage)
458 (sub_error_auto, sub_lang, sub) = video_subtitles[0]
462 # We report the original error
463 self._downloader.report_warning(sub_error)
465 if self._downloader.params.get('allsubtitles', False):
466 video_subtitles = self._extract_all_subtitles(video_id)
467 for video_subtitle in video_subtitles:
468 (sub_error, sub_lang, sub) = video_subtitle
470 self._downloader.report_warning(sub_error)
472 if self._downloader.params.get('listsubtitles', False):
473 self._list_available_subtitles(video_id)
476 if 'length_seconds' not in video_info:
477 self._downloader.report_warning(u'unable to extract video duration')
480 video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
482 # Decide which formats to download
483 req_format = self._downloader.params.get('format', None)
486 mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
487 info = json.loads(mobj.group(1))
489 if args.get('ptk','') == 'vevo' or 'dashmpd' in args:
490 # Vevo videos with encrypted signatures
491 self.to_screen(u'%s: Vevo video detected.' % video_id)
492 video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
496 if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
497 self.report_rtmp_download()
498 video_url_list = [(None, video_info['conn'][0])]
499 elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
501 for url_data_str in video_info['url_encoded_fmt_stream_map'][0].split(','):
502 url_data = compat_parse_qs(url_data_str)
503 if 'itag' in url_data and 'url' in url_data:
504 url = url_data['url'][0]
505 if 'sig' in url_data:
506 url += '&signature=' + url_data['sig'][0]
507 elif 's' in url_data:
508 signature = self._decrypt_signature(url_data['s'][0])
509 url += '&signature=' + signature
510 if 'ratebypass' not in url:
511 url += '&ratebypass=yes'
512 url_map[url_data['itag'][0]] = url
514 format_limit = self._downloader.params.get('format_limit', None)
515 available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
516 if format_limit is not None and format_limit in available_formats:
517 format_list = available_formats[available_formats.index(format_limit):]
519 format_list = available_formats
520 existing_formats = [x for x in format_list if x in url_map]
521 if len(existing_formats) == 0:
522 raise ExtractorError(u'no known formats available for video')
523 if self._downloader.params.get('listformats', None):
524 self._print_formats(existing_formats)
526 if req_format is None or req_format == 'best':
527 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
528 elif req_format == 'worst':
529 video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
530 elif req_format in ('-1', 'all'):
531 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
533 # Specific formats. We pick the first in a slash-delimeted sequence.
534 # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
535 req_formats = req_format.split('/')
536 video_url_list = None
537 for rf in req_formats:
539 video_url_list = [(rf, url_map[rf])]
541 if video_url_list is None:
542 raise ExtractorError(u'requested format not available')
544 raise ExtractorError(u'no conn or url_encoded_fmt_stream_map information found in video info')
547 for format_param, video_real_url in video_url_list:
549 video_extension = self._video_extensions.get(format_param, 'flv')
551 video_format = '{0} - {1}'.format(format_param if format_param else video_extension,
552 self._video_dimensions.get(format_param, '???'))
556 'url': video_real_url,
557 'uploader': video_uploader,
558 'uploader_id': video_uploader_id,
559 'upload_date': upload_date,
560 'title': video_title,
561 'ext': video_extension,
562 'format': video_format,
563 'thumbnail': video_thumbnail,
564 'description': video_description,
565 'player_url': player_url,
566 'subtitles': video_subtitles,
567 'duration': video_duration
571 class YoutubePlaylistIE(InfoExtractor):
572 """Information Extractor for YouTube playlists."""
579 (?:course|view_play_list|my_playlists|artist|playlist|watch)
580 \? (?:.*?&)*? (?:p|a|list)=
583 ((?:PL|EC|UU)?[0-9A-Za-z-_]{10,})
586 ((?:PL|EC|UU)[0-9A-Za-z-_]{10,})
588 _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json&safeSearch=none'
590 IE_NAME = u'youtube:playlist'
593 def suitable(cls, url):
594 """Receives a URL and returns True if suitable for this IE."""
595 return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
597 def _real_extract(self, url):
598 # Extract playlist id
599 mobj = re.match(self._VALID_URL, url, re.VERBOSE)
601 raise ExtractorError(u'Invalid URL: %s' % url)
603 # Download playlist videos from API
604 playlist_id = mobj.group(1) or mobj.group(2)
609 url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, self._MAX_RESULTS * (page_num - 1) + 1)
610 page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
613 response = json.loads(page)
614 except ValueError as err:
615 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
617 if 'feed' not in response:
618 raise ExtractorError(u'Got a malformed response from YouTube API')
619 playlist_title = response['feed']['title']['$t']
620 if 'entry' not in response['feed']:
621 # Number of videos is a multiple of self._MAX_RESULTS
624 for entry in response['feed']['entry']:
625 index = entry['yt$position']['$t']
626 if 'media$group' in entry and 'media$player' in entry['media$group']:
627 videos.append((index, entry['media$group']['media$player']['url']))
629 if len(response['feed']['entry']) < self._MAX_RESULTS:
633 videos = [v[1] for v in sorted(videos)]
635 url_results = [self.url_result(url, 'Youtube') for url in videos]
636 return [self.playlist_result(url_results, playlist_id, playlist_title)]
639 class YoutubeChannelIE(InfoExtractor):
640 """Information Extractor for YouTube channels."""
642 _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
643 _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
644 _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
645 _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'
646 IE_NAME = u'youtube:channel'
648 def extract_videos_from_page(self, page):
650 for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
651 if mobj.group(1) not in ids_in_page:
652 ids_in_page.append(mobj.group(1))
655 def _real_extract(self, url):
657 mobj = re.match(self._VALID_URL, url)
659 raise ExtractorError(u'Invalid URL: %s' % url)
661 # Download channel page
662 channel_id = mobj.group(1)
666 url = self._TEMPLATE_URL % (channel_id, pagenum)
667 page = self._download_webpage(url, channel_id,
668 u'Downloading page #%s' % pagenum)
670 # Extract video identifiers
671 ids_in_page = self.extract_videos_from_page(page)
672 video_ids.extend(ids_in_page)
674 # Download any subsequent channel pages using the json-based channel_ajax query
675 if self._MORE_PAGES_INDICATOR in page:
677 pagenum = pagenum + 1
679 url = self._MORE_PAGES_URL % (pagenum, channel_id)
680 page = self._download_webpage(url, channel_id,
681 u'Downloading page #%s' % pagenum)
683 page = json.loads(page)
685 ids_in_page = self.extract_videos_from_page(page['content_html'])
686 video_ids.extend(ids_in_page)
688 if self._MORE_PAGES_INDICATOR not in page['load_more_widget_html']:
691 self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
693 urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
694 url_entries = [self.url_result(url, 'Youtube') for url in urls]
695 return [self.playlist_result(url_entries, channel_id)]
698 class YoutubeUserIE(InfoExtractor):
699 """Information Extractor for YouTube users."""
701 _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
702 _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
703 _GDATA_PAGE_SIZE = 50
704 _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
705 _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
706 IE_NAME = u'youtube:user'
708 def _real_extract(self, url):
710 mobj = re.match(self._VALID_URL, url)
712 raise ExtractorError(u'Invalid URL: %s' % url)
714 username = mobj.group(1)
716 # Download video ids using YouTube Data API. Result size per
717 # query is limited (currently to 50 videos) so we need to query
718 # page by page until there are no video ids - it means we got
725 start_index = pagenum * self._GDATA_PAGE_SIZE + 1
727 gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
728 page = self._download_webpage(gdata_url, username,
729 u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
731 # Extract video identifiers
734 for mobj in re.finditer(self._VIDEO_INDICATOR, page):
735 if mobj.group(1) not in ids_in_page:
736 ids_in_page.append(mobj.group(1))
738 video_ids.extend(ids_in_page)
740 # A little optimization - if current page is not
741 # "full", ie. does not contain PAGE_SIZE video ids then
742 # we can assume that this page is the last one - there
743 # are no more ids on further pages - no need to query
746 if len(ids_in_page) < self._GDATA_PAGE_SIZE:
751 urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
752 url_results = [self.url_result(url, 'Youtube') for url in urls]
753 return [self.playlist_result(url_results, playlist_title = username)]
755 class YoutubeSearchIE(SearchInfoExtractor):
756 """Information Extractor for YouTube search queries."""
757 _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
759 IE_NAME = u'youtube:search'
760 _SEARCH_KEY = 'ytsearch'
762 def report_download_page(self, query, pagenum):
763 """Report attempt to download search page with given number."""
764 self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
766 def _get_n_results(self, query, n):
767 """Get a specified number of results for a query"""
773 while (50 * pagenum) < limit:
774 self.report_download_page(query, pagenum+1)
775 result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
776 request = compat_urllib_request.Request(result_url)
778 data = compat_urllib_request.urlopen(request).read().decode('utf-8')
779 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
780 raise ExtractorError(u'Unable to download API page: %s' % compat_str(err))
781 api_response = json.loads(data)['data']
783 if not 'items' in api_response:
784 raise ExtractorError(u'[youtube] No video results')
786 new_ids = list(video['id'] for video in api_response['items'])
789 limit = min(n, api_response['totalItems'])
792 if len(video_ids) > n:
793 video_ids = video_ids[:n]
794 videos = [self.url_result('http://www.youtube.com/watch?v=%s' % id, 'Youtube') for id in video_ids]
795 return self.playlist_result(videos, query)