_ Git - youtube-dl/blob - youtube_dl/extractor/facebook.py

   1 from __future__ import unicode_literals
   2
   3 import json
   4 import re
   5 import socket
   6
   7 from .common import InfoExtractor
   8 from ..compat import (
   9     compat_etree_fromstring,
  10     compat_http_client,
  11     compat_urllib_error,
  12     compat_urllib_parse_unquote,
  13     compat_urllib_parse_unquote_plus,
  14 )
  15 from ..utils import (
  16     error_to_compat_str,
  17     ExtractorError,
  18     limit_length,
  19     sanitized_Request,
  20     urlencode_postdata,
  21     get_element_by_id,
  22     clean_html,
  23 )
  24
  25
  26 class FacebookIE(InfoExtractor):
  27     _VALID_URL = r'''(?x)
  28                 (?:
  29                     https?://
  30                         (?:\w+\.)?facebook\.com/
  31                         (?:[^#]*?\#!/)?
  32                         (?:
  33                             (?:
  34                                 video/video\.php|
  35                                 photo\.php|
  36                                 video\.php|
  37                                 video/embed
  38                             )\?(?:.*?)(?:v|video_id)=|
  39                             [^/]+/videos/(?:[^/]+/)?
  40                         )|
  41                     facebook:
  42                 )
  43                 (?P<id>[0-9]+)
  44                 '''
  45     _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
  46     _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
  47     _NETRC_MACHINE = 'facebook'
  48     IE_NAME = 'facebook'
  49
  50     _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
  51
  52     _TESTS = [{
  53         'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
  54         'md5': '6a40d33c0eccbb1af76cf0485a052659',
  55         'info_dict': {
  56             'id': '637842556329505',
  57             'ext': 'mp4',
  58             'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
  59             'uploader': 'Tennis on Facebook',
  60         }
  61     }, {
  62         'note': 'Video without discernible title',
  63         'url': 'https://www.facebook.com/video.php?v=274175099429670',
  64         'info_dict': {
  65             'id': '274175099429670',
  66             'ext': 'mp4',
  67             'title': 'Facebook video #274175099429670',
  68             'uploader': 'Asif Nawab Butt',
  69         },
  70         'expected_warnings': [
  71             'title'
  72         ]
  73     }, {
  74         'note': 'Video with DASH manifest',
  75         'url': 'https://www.facebook.com/video.php?v=957955867617029',
  76         'info_dict': {
  77             'id': '957955867617029',
  78             'ext': 'mp4',
  79             'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
  80             'uploader': 'Demy de Zeeuw',
  81         },
  82     }, {
  83         'url': 'https://www.facebook.com/video.php?v=10204634152394104',
  84         'only_matching': True,
  85     }, {
  86         'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
  87         'only_matching': True,
  88     }, {
  89         'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
  90         'only_matching': True,
  91     }, {
  92         'url': 'facebook:544765982287235',
  93         'only_matching': True,
  94     }]
  95
  96     def _login(self):
  97         (useremail, password) = self._get_login_info()
  98         if useremail is None:
  99             return
 100
 101         login_page_req = sanitized_Request(self._LOGIN_URL)
 102         self._set_cookie('facebook.com', 'locale', 'en_US')
 103         login_page = self._download_webpage(login_page_req, None,
 104                                             note='Downloading login page',
 105                                             errnote='Unable to download login page')
 106         lsd = self._search_regex(
 107             r'<input type="hidden" name="lsd" value="([^"]*)"',
 108             login_page, 'lsd')
 109         lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
 110
 111         login_form = {
 112             'email': useremail,
 113             'pass': password,
 114             'lsd': lsd,
 115             'lgnrnd': lgnrnd,
 116             'next': 'http://facebook.com/home.php',
 117             'default_persistent': '0',
 118             'legacy_return': '1',
 119             'timezone': '-60',
 120             'trynum': '1',
 121         }
 122         request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
 123         request.add_header('Content-Type', 'application/x-www-form-urlencoded')
 124         try:
 125             login_results = self._download_webpage(request, None,
 126                                                    note='Logging in', errnote='unable to fetch login page')
 127             if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
 128                 error = self._html_search_regex(
 129                     r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
 130                     login_results, 'login error', default=None, group='error')
 131                 if error:
 132                     raise ExtractorError('Unable to login: %s' % error, expected=True)
 133                 self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
 134                 return
 135
 136             fb_dtsg = self._search_regex(
 137                 r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
 138             h = self._search_regex(
 139                 r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)
 140
 141             if not fb_dtsg or not h:
 142                 return
 143
 144             check_form = {
 145                 'fb_dtsg': fb_dtsg,
 146                 'h': h,
 147                 'name_action_selected': 'dont_save',
 148             }
 149             check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
 150             check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
 151             check_response = self._download_webpage(check_req, None,
 152                                                     note='Confirming login')
 153             if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
 154                 self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
 155         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
 156             self._downloader.report_warning('unable to log in: %s' % error_to_compat_str(err))
 157             return
 158
 159     def _real_initialize(self):
 160         self._login()
 161
 162     def _real_extract(self, url):
 163         video_id = self._match_id(url)
 164         req = sanitized_Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
 165         req.add_header('User-Agent', self._CHROME_USER_AGENT)
 166         webpage = self._download_webpage(req, video_id)
 167
 168         video_data = None
 169
 170         BEFORE = '{swf.addParam(param[0], param[1]);});\n'
 171         AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
 172         m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
 173         if m:
 174             data = dict(json.loads(m.group(1)))
 175             params_raw = compat_urllib_parse_unquote(data['params'])
 176             video_data = json.loads(params_raw)['video_data']
 177
 178         def video_data_list2dict(video_data):
 179             ret = {}
 180             for item in video_data:
 181                 format_id = item['stream_type']
 182                 ret.setdefault(format_id, []).append(item)
 183             return ret
 184
 185         if not video_data:
 186             server_js_data = self._parse_json(self._search_regex(
 187                 r'handleServerJS\(({.+})\);', webpage, 'server js data'), video_id)
 188             for item in server_js_data['instances']:
 189                 if item[1][0] == 'VideoConfig':
 190                     video_data = video_data_list2dict(item[2][0]['videoData'])
 191                     break
 192
 193         if not video_data:
 194             m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
 195             if m_msg is not None:
 196                 raise ExtractorError(
 197                     'The video is not available, Facebook said: "%s"' % m_msg.group(1),
 198                     expected=True)
 199             else:
 200                 raise ExtractorError('Cannot parse data')
 201
 202         formats = []
 203         for format_id, f in video_data.items():
 204             if not f or not isinstance(f, list):
 205                 continue
 206             for quality in ('sd', 'hd'):
 207                 for src_type in ('src', 'src_no_ratelimit'):
 208                     src = f[0].get('%s_%s' % (quality, src_type))
 209                     if src:
 210                         formats.append({
 211                             'format_id': '%s_%s_%s' % (format_id, quality, src_type),
 212                             'url': src,
 213                             'preference': -10 if format_id == 'progressive' else 0,
 214                         })
 215             dash_manifest = f[0].get('dash_manifest')
 216             if dash_manifest:
 217                 formats.extend(self._parse_dash_manifest(
 218                     video_id, compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest)),
 219                     default_ns='urn:mpeg:dash:schema:mpd:2011'))
 220         if not formats:
 221             raise ExtractorError('Cannot find video formats')
 222
 223         self._sort_formats(formats)
 224
 225         video_title = self._html_search_regex(
 226             r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
 227             default=None)
 228         if not video_title:
 229             video_title = self._html_search_regex(
 230                 r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
 231                 webpage, 'alternative title', default=None)
 232             video_title = limit_length(video_title, 80)
 233         if not video_title:
 234             video_title = 'Facebook video #%s' % video_id
 235         uploader = clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
 236
 237         return {
 238             'id': video_id,
 239             'title': video_title,
 240             'formats': formats,
 241             'uploader': uploader,
 242         }
 243
 244
 245 class FacebookPostIE(InfoExtractor):
 246     IE_NAME = 'facebook:post'
 247     _VALID_URL = r'https?://(?:\w+\.)?facebook\.com/[^/]+/posts/(?P<id>\d+)'
 248     _TEST = {
 249         'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
 250         'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
 251         'info_dict': {
 252             'id': '544765982287235',
 253             'ext': 'mp4',
 254             'title': '"What are you doing running in the snow?"',
 255             'uploader': 'FailArmy',
 256         }
 257     }
 258
 259     def _real_extract(self, url):
 260         post_id = self._match_id(url)
 261
 262         webpage = self._download_webpage(url, post_id)
 263
 264         entries = [
 265             self.url_result('facebook:%s' % video_id, FacebookIE.ie_key())
 266             for video_id in self._parse_json(
 267                 self._search_regex(
 268                     r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
 269                     webpage, 'video ids', group='ids'),
 270                 post_id)]
 271
 272         return self.playlist_result(entries, post_id)