youtube_dl/extractor/facebook.py

   1 from __future__ import unicode_literals
   2
   3 import re
   4 import socket
   5
   6 from .common import InfoExtractor
   7 from ..compat import (
   8     compat_etree_fromstring,
   9     compat_http_client,
  10     compat_urllib_error,
  11     compat_urllib_parse_unquote,
  12     compat_urllib_parse_unquote_plus,
  13 )
  14 from ..utils import (
  15     clean_html,
  16     error_to_compat_str,
  17     ExtractorError,
  18     get_element_by_id,
  19     int_or_none,
  20     js_to_json,
  21     limit_length,
  22     sanitized_Request,
  23     try_get,
  24     urlencode_postdata,
  25 )
  26
  27
  28 class FacebookIE(InfoExtractor):
  29     _VALID_URL = r'''(?x)
  30                 (?:
  31                     https?://
  32                         (?:[\w-]+\.)?(?:facebook\.com|facebookcorewwwi\.onion)/
  33                         (?:[^#]*?\#!/)?
  34                         (?:
  35                             (?:
  36                                 video/video\.php|
  37                                 photo\.php|
  38                                 video\.php|
  39                                 video/embed|
  40                                 story\.php
  41                             )\?(?:.*?)(?:v|video_id|story_fbid)=|
  42                             [^/]+/videos/(?:[^/]+/)?|
  43                             [^/]+/posts/|
  44                             groups/[^/]+/permalink/
  45                         )|
  46                     facebook:
  47                 )
  48                 (?P<id>[0-9]+)
  49                 '''
  50     _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
  51     _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
  52     _NETRC_MACHINE = 'facebook'
  53     IE_NAME = 'facebook'
  54
  55     _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
  56
  57     _VIDEO_PAGE_TEMPLATE = 'https://www.facebook.com/video/video.php?v=%s'
  58
  59     _TESTS = [{
  60         'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
  61         'md5': '6a40d33c0eccbb1af76cf0485a052659',
  62         'info_dict': {
  63             'id': '637842556329505',
  64             'ext': 'mp4',
  65             'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
  66             'uploader': 'Tennis on Facebook',
  67             'upload_date': '20140908',
  68             'timestamp': 1410199200,
  69         }
  70     }, {
  71         'note': 'Video without discernible title',
  72         'url': 'https://www.facebook.com/video.php?v=274175099429670',
  73         'info_dict': {
  74             'id': '274175099429670',
  75             'ext': 'mp4',
  76             'title': 'Asif Nawab Butt posted a video to his Timeline.',
  77             'uploader': 'Asif Nawab Butt',
  78             'upload_date': '20140506',
  79             'timestamp': 1399398998,
  80         },
  81         'expected_warnings': [
  82             'title'
  83         ]
  84     }, {
  85         'note': 'Video with DASH manifest',
  86         'url': 'https://www.facebook.com/video.php?v=957955867617029',
  87         'md5': 'b2c28d528273b323abe5c6ab59f0f030',
  88         'info_dict': {
  89             'id': '957955867617029',
  90             'ext': 'mp4',
  91             'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
  92             'uploader': 'Demy de Zeeuw',
  93             'upload_date': '20160110',
  94             'timestamp': 1452431627,
  95         },
  96     }, {
  97         'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
  98         'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
  99         'info_dict': {
 100             'id': '544765982287235',
 101             'ext': 'mp4',
 102             'title': '"What are you doing running in the snow?"',
 103             'uploader': 'FailArmy',
 104         },
 105         'skip': 'Video gone',
 106     }, {
 107         'url': 'https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903',
 108         'md5': '1deb90b6ac27f7efcf6d747c8a27f5e3',
 109         'info_dict': {
 110             'id': '1035862816472149',
 111             'ext': 'mp4',
 112             'title': 'What the Flock Is Going On In New Zealand  Credit: ViralHog',
 113             'uploader': 'S. Saint',
 114         },
 115         'skip': 'Video gone',
 116     }, {
 117         'note': 'swf params escaped',
 118         'url': 'https://www.facebook.com/barackobama/posts/10153664894881749',
 119         'md5': '97ba073838964d12c70566e0085c2b91',
 120         'info_dict': {
 121             'id': '10153664894881749',
 122             'ext': 'mp4',
 123             'title': 'Facebook video #10153664894881749',
 124         },
 125     }, {
 126         # have 1080P, but only up to 720p in swf params
 127         'url': 'https://www.facebook.com/cnn/videos/10155529876156509/',
 128         'md5': '0d9813160b146b3bc8744e006027fcc6',
 129         'info_dict': {
 130             'id': '10155529876156509',
 131             'ext': 'mp4',
 132             'title': 'Holocaust survivor becomes US citizen',
 133             'timestamp': 1477818095,
 134             'upload_date': '20161030',
 135             'uploader': 'CNN',
 136         },
 137     }, {
 138         'url': 'https://www.facebook.com/video.php?v=10204634152394104',
 139         'only_matching': True,
 140     }, {
 141         'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
 142         'only_matching': True,
 143     }, {
 144         'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
 145         'only_matching': True,
 146     }, {
 147         'url': 'facebook:544765982287235',
 148         'only_matching': True,
 149     }, {
 150         'url': 'https://www.facebook.com/groups/164828000315060/permalink/764967300301124/',
 151         'only_matching': True,
 152     }, {
 153         'url': 'https://zh-hk.facebook.com/peoplespower/videos/1135894589806027/',
 154         'only_matching': True,
 155     }, {
 156         'url': 'https://www.facebookcorewwwi.onion/video.php?v=274175099429670',
 157         'only_matching': True,
 158     }]
 159
 160     @staticmethod
 161     def _extract_url(webpage):
 162         mobj = re.search(
 163             r'<iframe[^>]+?src=(["\'])(?P<url>https://www\.facebook\.com/video/embed.+?)\1', webpage)
 164         if mobj is not None:
 165             return mobj.group('url')
 166
 167         # Facebook API embed
 168         # see https://developers.facebook.com/docs/plugins/embedded-video-player
 169         mobj = re.search(r'''(?x)<div[^>]+
 170                 class=(?P<q1>[\'"])[^\'"]*\bfb-(?:video|post)\b[^\'"]*(?P=q1)[^>]+
 171                 data-href=(?P<q2>[\'"])(?P<url>(?:https?:)?//(?:www\.)?facebook.com/.+?)(?P=q2)''', webpage)
 172         if mobj is not None:
 173             return mobj.group('url')
 174
 175     def _login(self):
 176         (useremail, password) = self._get_login_info()
 177         if useremail is None:
 178             return
 179
 180         login_page_req = sanitized_Request(self._LOGIN_URL)
 181         self._set_cookie('facebook.com', 'locale', 'en_US')
 182         login_page = self._download_webpage(login_page_req, None,
 183                                             note='Downloading login page',
 184                                             errnote='Unable to download login page')
 185         lsd = self._search_regex(
 186             r'<input type="hidden" name="lsd" value="([^"]*)"',
 187             login_page, 'lsd')
 188         lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
 189
 190         login_form = {
 191             'email': useremail,
 192             'pass': password,
 193             'lsd': lsd,
 194             'lgnrnd': lgnrnd,
 195             'next': 'http://facebook.com/home.php',
 196             'default_persistent': '0',
 197             'legacy_return': '1',
 198             'timezone': '-60',
 199             'trynum': '1',
 200         }
 201         request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
 202         request.add_header('Content-Type', 'application/x-www-form-urlencoded')
 203         try:
 204             login_results = self._download_webpage(request, None,
 205                                                    note='Logging in', errnote='unable to fetch login page')
 206             if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
 207                 error = self._html_search_regex(
 208                     r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
 209                     login_results, 'login error', default=None, group='error')
 210                 if error:
 211                     raise ExtractorError('Unable to login: %s' % error, expected=True)
 212                 self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
 213                 return
 214
 215             fb_dtsg = self._search_regex(
 216                 r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
 217             h = self._search_regex(
 218                 r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)
 219
 220             if not fb_dtsg or not h:
 221                 return
 222
 223             check_form = {
 224                 'fb_dtsg': fb_dtsg,
 225                 'h': h,
 226                 'name_action_selected': 'dont_save',
 227             }
 228             check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
 229             check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
 230             check_response = self._download_webpage(check_req, None,
 231                                                     note='Confirming login')
 232             if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
 233                 self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
 234         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
 235             self._downloader.report_warning('unable to log in: %s' % error_to_compat_str(err))
 236             return
 237
 238     def _real_initialize(self):
 239         self._login()
 240
 241     def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
 242         req = sanitized_Request(url)
 243         req.add_header('User-Agent', self._CHROME_USER_AGENT)
 244         webpage = self._download_webpage(req, video_id)
 245
 246         video_data = None
 247
 248         def extract_video_data(instances):
 249             for item in instances:
 250                 if item[1][0] == 'VideoConfig':
 251                     video_item = item[2][0]
 252                     if video_item.get('video_id') == video_id:
 253                         return video_item['videoData']
 254
 255         server_js_data = self._parse_json(self._search_regex(
 256             r'handleServerJS\(({.+})(?:\);|,")', webpage,
 257             'server js data', default='{}'), video_id, fatal=False)
 258
 259         if server_js_data:
 260             video_data = extract_video_data(server_js_data.get('instances', []))
 261
 262         if not video_data:
 263             server_js_data = self._parse_json(
 264                 self._search_regex(
 265                     r'bigPipe\.onPageletArrive\(({.+?})\)\s*;\s*}\s*\)\s*,\s*["\']onPageletArrive\s+stream_pagelet',
 266                     webpage, 'js data', default='{}'),
 267                 video_id, transform_source=js_to_json, fatal=False)
 268             if server_js_data:
 269                 video_data = extract_video_data(try_get(
 270                     server_js_data, lambda x: x['jsmods']['instances'],
 271                     list) or [])
 272
 273         if not video_data:
 274             if not fatal_if_no_video:
 275                 return webpage, False
 276             m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
 277             if m_msg is not None:
 278                 raise ExtractorError(
 279                     'The video is not available, Facebook said: "%s"' % m_msg.group(1),
 280                     expected=True)
 281             elif '>You must log in to continue' in webpage:
 282                 self.raise_login_required()
 283             else:
 284                 raise ExtractorError('Cannot parse data')
 285
 286         formats = []
 287         for f in video_data:
 288             format_id = f['stream_type']
 289             if f and isinstance(f, dict):
 290                 f = [f]
 291             if not f or not isinstance(f, list):
 292                 continue
 293             for quality in ('sd', 'hd'):
 294                 for src_type in ('src', 'src_no_ratelimit'):
 295                     src = f[0].get('%s_%s' % (quality, src_type))
 296                     if src:
 297                         preference = -10 if format_id == 'progressive' else 0
 298                         if quality == 'hd':
 299                             preference += 5
 300                         formats.append({
 301                             'format_id': '%s_%s_%s' % (format_id, quality, src_type),
 302                             'url': src,
 303                             'preference': preference,
 304                         })
 305             dash_manifest = f[0].get('dash_manifest')
 306             if dash_manifest:
 307                 formats.extend(self._parse_mpd_formats(
 308                     compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
 309         if not formats:
 310             raise ExtractorError('Cannot find video formats')
 311
 312         self._sort_formats(formats)
 313
 314         video_title = self._html_search_regex(
 315             r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
 316             default=None)
 317         if not video_title:
 318             video_title = self._html_search_regex(
 319                 r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
 320                 webpage, 'alternative title', default=None)
 321         if not video_title:
 322             video_title = self._html_search_meta(
 323                 'description', webpage, 'title')
 324         if video_title:
 325             video_title = limit_length(video_title, 80)
 326         else:
 327             video_title = 'Facebook video #%s' % video_id
 328         uploader = clean_html(get_element_by_id(
 329             'fbPhotoPageAuthorName', webpage)) or self._search_regex(
 330             r'ownerName\s*:\s*"([^"]+)"', webpage, 'uploader', fatal=False)
 331         timestamp = int_or_none(self._search_regex(
 332             r'<abbr[^>]+data-utime=["\'](\d+)', webpage,
 333             'timestamp', default=None))
 334
 335         info_dict = {
 336             'id': video_id,
 337             'title': video_title,
 338             'formats': formats,
 339             'uploader': uploader,
 340             'timestamp': timestamp,
 341         }
 342
 343         return webpage, info_dict
 344
 345     def _real_extract(self, url):
 346         video_id = self._match_id(url)
 347
 348         real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
 349         webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)
 350
 351         if info_dict:
 352             return info_dict
 353
 354         if '/posts/' in url:
 355             entries = [
 356                 self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
 357                 for vid in self._parse_json(
 358                     self._search_regex(
 359                         r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
 360                         webpage, 'video ids', group='ids'),
 361                     video_id)]
 362
 363             return self.playlist_result(entries, video_id)
 364         else:
 365             _, info_dict = self._extract_from_url(
 366                 self._VIDEO_PAGE_TEMPLATE % video_id,
 367                 video_id, fatal_if_no_video=True)
 368             return info_dict
 369
 370
 371 class FacebookPluginsVideoIE(InfoExtractor):
 372     _VALID_URL = r'https?://(?:[\w-]+\.)?facebook\.com/plugins/video\.php\?.*?\bhref=(?P<id>https.+)'
 373
 374     _TESTS = [{
 375         'url': 'https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fgov.sg%2Fvideos%2F10154383743583686%2F&show_text=0&width=560',
 376         'md5': '5954e92cdfe51fe5782ae9bda7058a07',
 377         'info_dict': {
 378             'id': '10154383743583686',
 379             'ext': 'mp4',
 380             'title': 'What to do during the haze?',
 381             'uploader': 'Gov.sg',
 382             'upload_date': '20160826',
 383             'timestamp': 1472184808,
 384         },
 385         'add_ie': [FacebookIE.ie_key()],
 386     }, {
 387         'url': 'https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fvideo.php%3Fv%3D10204634152394104',
 388         'only_matching': True,
 389     }, {
 390         'url': 'https://www.facebook.com/plugins/video.php?href=https://www.facebook.com/gov.sg/videos/10154383743583686/&show_text=0&width=560',
 391         'only_matching': True,
 392     }]
 393
 394     def _real_extract(self, url):
 395         return self.url_result(
 396             compat_urllib_parse_unquote(self._match_id(url)),
 397             FacebookIE.ie_key())