[facebook] Improve extraction (closes #16554)
[youtube-dl] / youtube_dl / extractor / facebook.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
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     clean_html,
17     error_to_compat_str,
18     ExtractorError,
19     get_element_by_id,
20     int_or_none,
21     js_to_json,
22     limit_length,
23     sanitized_Request,
24     try_get,
25     urlencode_postdata,
26 )
27
28
29 class FacebookIE(InfoExtractor):
30     _VALID_URL = r'''(?x)
31                 (?:
32                     https?://
33                         (?:[\w-]+\.)?(?:facebook\.com|facebookcorewwwi\.onion)/
34                         (?:[^#]*?\#!/)?
35                         (?:
36                             (?:
37                                 video/video\.php|
38                                 photo\.php|
39                                 video\.php|
40                                 video/embed|
41                                 story\.php
42                             )\?(?:.*?)(?:v|video_id|story_fbid)=|
43                             [^/]+/videos/(?:[^/]+/)?|
44                             [^/]+/posts/|
45                             groups/[^/]+/permalink/
46                         )|
47                     facebook:
48                 )
49                 (?P<id>[0-9]+)
50                 '''
51     _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
52     _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
53     _NETRC_MACHINE = 'facebook'
54     IE_NAME = 'facebook'
55
56     _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
57
58     _VIDEO_PAGE_TEMPLATE = 'https://www.facebook.com/video/video.php?v=%s'
59     _VIDEO_PAGE_TAHOE_TEMPLATE = 'https://www.facebook.com/video/tahoe/async/%s/?chain=true&isvideo=true'
60
61     _TESTS = [{
62         'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
63         'md5': '6a40d33c0eccbb1af76cf0485a052659',
64         'info_dict': {
65             'id': '637842556329505',
66             'ext': 'mp4',
67             'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
68             'uploader': 'Tennis on Facebook',
69             'upload_date': '20140908',
70             'timestamp': 1410199200,
71         },
72         'skip': 'Requires logging in',
73     }, {
74         'url': 'https://www.facebook.com/video.php?v=274175099429670',
75         'info_dict': {
76             'id': '274175099429670',
77             'ext': 'mp4',
78             'title': 'Asif Nawab Butt posted a video to his Timeline.',
79             'uploader': 'Asif Nawab Butt',
80             'upload_date': '20140506',
81             'timestamp': 1399398998,
82             'thumbnail': r're:^https?://.*',
83         },
84         'expected_warnings': [
85             'title'
86         ]
87     }, {
88         'note': 'Video with DASH manifest',
89         'url': 'https://www.facebook.com/video.php?v=957955867617029',
90         'md5': 'b2c28d528273b323abe5c6ab59f0f030',
91         'info_dict': {
92             'id': '957955867617029',
93             'ext': 'mp4',
94             'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
95             'uploader': 'Demy de Zeeuw',
96             'upload_date': '20160110',
97             'timestamp': 1452431627,
98         },
99         'skip': 'Requires logging in',
100     }, {
101         'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
102         'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
103         'info_dict': {
104             'id': '544765982287235',
105             'ext': 'mp4',
106             'title': '"What are you doing running in the snow?"',
107             'uploader': 'FailArmy',
108         },
109         'skip': 'Video gone',
110     }, {
111         'url': 'https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903',
112         'md5': '1deb90b6ac27f7efcf6d747c8a27f5e3',
113         'info_dict': {
114             'id': '1035862816472149',
115             'ext': 'mp4',
116             'title': 'What the Flock Is Going On In New Zealand  Credit: ViralHog',
117             'uploader': 'S. Saint',
118         },
119         'skip': 'Video gone',
120     }, {
121         'note': 'swf params escaped',
122         'url': 'https://www.facebook.com/barackobama/posts/10153664894881749',
123         'md5': '97ba073838964d12c70566e0085c2b91',
124         'info_dict': {
125             'id': '10153664894881749',
126             'ext': 'mp4',
127             'title': 'Average time to confirm recent Supreme Court nominees: 67 days Longest it\'s t...',
128             'thumbnail': r're:^https?://.*',
129             'timestamp': 1456259628,
130             'upload_date': '20160223',
131             'uploader': 'Barack Obama',
132         },
133     }, {
134         # have 1080P, but only up to 720p in swf params
135         'url': 'https://www.facebook.com/cnn/videos/10155529876156509/',
136         'md5': '0d9813160b146b3bc8744e006027fcc6',
137         'info_dict': {
138             'id': '10155529876156509',
139             'ext': 'mp4',
140             'title': 'She survived the holocaust — and years later, she’s getting her citizenship s...',
141             'timestamp': 1477818095,
142             'upload_date': '20161030',
143             'uploader': 'CNN',
144             'thumbnail': r're:^https?://.*',
145         },
146     }, {
147         # bigPipe.onPageletArrive ... onPageletArrive pagelet_group_mall
148         'url': 'https://www.facebook.com/yaroslav.korpan/videos/1417995061575415/',
149         'info_dict': {
150             'id': '1417995061575415',
151             'ext': 'mp4',
152             'title': 'md5:a7b86ca673f51800cd54687b7f4012fe',
153             'timestamp': 1486648217,
154             'upload_date': '20170209',
155             'uploader': 'Yaroslav Korpan',
156         },
157         'params': {
158             'skip_download': True,
159         },
160     }, {
161         'url': 'https://www.facebook.com/LaGuiaDelVaron/posts/1072691702860471',
162         'info_dict': {
163             'id': '1072691702860471',
164             'ext': 'mp4',
165             'title': 'md5:ae2d22a93fbb12dad20dc393a869739d',
166             'timestamp': 1477305000,
167             'upload_date': '20161024',
168             'uploader': 'La Guía Del Varón',
169             'thumbnail': r're:^https?://.*',
170         },
171         'params': {
172             'skip_download': True,
173         },
174     }, {
175         'url': 'https://www.facebook.com/groups/1024490957622648/permalink/1396382447100162/',
176         'info_dict': {
177             'id': '1396382447100162',
178             'ext': 'mp4',
179             'title': 'md5:e2d2700afdf84e121f5d0f999bad13a3',
180             'timestamp': 1486035494,
181             'upload_date': '20170202',
182             'uploader': 'Elisabeth Ahtn',
183         },
184         'params': {
185             'skip_download': True,
186         },
187     }, {
188         'url': 'https://www.facebook.com/video.php?v=10204634152394104',
189         'only_matching': True,
190     }, {
191         'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
192         'only_matching': True,
193     }, {
194         'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
195         'only_matching': True,
196     }, {
197         'url': 'facebook:544765982287235',
198         'only_matching': True,
199     }, {
200         'url': 'https://www.facebook.com/groups/164828000315060/permalink/764967300301124/',
201         'only_matching': True,
202     }, {
203         'url': 'https://zh-hk.facebook.com/peoplespower/videos/1135894589806027/',
204         'only_matching': True,
205     }, {
206         'url': 'https://www.facebookcorewwwi.onion/video.php?v=274175099429670',
207         'only_matching': True,
208     }, {
209         # no title
210         'url': 'https://www.facebook.com/onlycleverentertainment/videos/1947995502095005/',
211         'only_matching': True,
212     }, {
213         'url': 'https://www.facebook.com/WatchESLOne/videos/359649331226507/',
214         'info_dict': {
215             'id': '359649331226507',
216             'ext': 'mp4',
217             'title': '#ESLOne VoD - Birmingham Finals Day#1 Fnatic vs. @Evil Geniuses',
218             'uploader': 'ESL One Dota 2',
219         },
220         'params': {
221             'skip_download': True,
222         },
223     }]
224
225     @staticmethod
226     def _extract_urls(webpage):
227         urls = []
228         for mobj in re.finditer(
229                 r'<iframe[^>]+?src=(["\'])(?P<url>https?://www\.facebook\.com/(?:video/embed|plugins/video\.php).+?)\1',
230                 webpage):
231             urls.append(mobj.group('url'))
232         # Facebook API embed
233         # see https://developers.facebook.com/docs/plugins/embedded-video-player
234         for mobj in re.finditer(r'''(?x)<div[^>]+
235                 class=(?P<q1>[\'"])[^\'"]*\bfb-(?:video|post)\b[^\'"]*(?P=q1)[^>]+
236                 data-href=(?P<q2>[\'"])(?P<url>(?:https?:)?//(?:www\.)?facebook.com/.+?)(?P=q2)''', webpage):
237             urls.append(mobj.group('url'))
238         return urls
239
240     def _login(self):
241         useremail, password = self._get_login_info()
242         if useremail is None:
243             return
244
245         login_page_req = sanitized_Request(self._LOGIN_URL)
246         self._set_cookie('facebook.com', 'locale', 'en_US')
247         login_page = self._download_webpage(login_page_req, None,
248                                             note='Downloading login page',
249                                             errnote='Unable to download login page')
250         lsd = self._search_regex(
251             r'<input type="hidden" name="lsd" value="([^"]*)"',
252             login_page, 'lsd')
253         lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
254
255         login_form = {
256             'email': useremail,
257             'pass': password,
258             'lsd': lsd,
259             'lgnrnd': lgnrnd,
260             'next': 'http://facebook.com/home.php',
261             'default_persistent': '0',
262             'legacy_return': '1',
263             'timezone': '-60',
264             'trynum': '1',
265         }
266         request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
267         request.add_header('Content-Type', 'application/x-www-form-urlencoded')
268         try:
269             login_results = self._download_webpage(request, None,
270                                                    note='Logging in', errnote='unable to fetch login page')
271             if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
272                 error = self._html_search_regex(
273                     r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
274                     login_results, 'login error', default=None, group='error')
275                 if error:
276                     raise ExtractorError('Unable to login: %s' % error, expected=True)
277                 self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
278                 return
279
280             fb_dtsg = self._search_regex(
281                 r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
282             h = self._search_regex(
283                 r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)
284
285             if not fb_dtsg or not h:
286                 return
287
288             check_form = {
289                 'fb_dtsg': fb_dtsg,
290                 'h': h,
291                 'name_action_selected': 'dont_save',
292             }
293             check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
294             check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
295             check_response = self._download_webpage(check_req, None,
296                                                     note='Confirming login')
297             if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
298                 self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
299         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
300             self._downloader.report_warning('unable to log in: %s' % error_to_compat_str(err))
301             return
302
303     def _real_initialize(self):
304         self._login()
305
306     def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
307         req = sanitized_Request(url)
308         req.add_header('User-Agent', self._CHROME_USER_AGENT)
309         webpage = self._download_webpage(req, video_id)
310
311         video_data = None
312
313         def extract_video_data(instances):
314             for item in instances:
315                 if item[1][0] == 'VideoConfig':
316                     video_item = item[2][0]
317                     if video_item.get('video_id'):
318                         return video_item['videoData']
319
320         server_js_data = self._parse_json(self._search_regex(
321             r'handleServerJS\(({.+})(?:\);|,")', webpage,
322             'server js data', default='{}'), video_id, fatal=False)
323
324         if server_js_data:
325             video_data = extract_video_data(server_js_data.get('instances', []))
326
327         def extract_from_jsmods_instances(js_data):
328             if js_data:
329                 return extract_video_data(try_get(
330                     js_data, lambda x: x['jsmods']['instances'], list) or [])
331
332         if not video_data:
333             server_js_data = self._parse_json(
334                 self._search_regex(
335                     r'bigPipe\.onPageletArrive\(({.+?})\)\s*;\s*}\s*\)\s*,\s*["\']onPageletArrive\s+(?:stream_pagelet|pagelet_group_mall|permalink_video_pagelet)',
336                     webpage, 'js data', default='{}'),
337                 video_id, transform_source=js_to_json, fatal=False)
338             video_data = extract_from_jsmods_instances(server_js_data)
339
340         if not video_data:
341             if not fatal_if_no_video:
342                 return webpage, False
343             m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
344             if m_msg is not None:
345                 raise ExtractorError(
346                     'The video is not available, Facebook said: "%s"' % m_msg.group(1),
347                     expected=True)
348             elif '>You must log in to continue' in webpage:
349                 self.raise_login_required()
350
351             # Video info not in first request, do a secondary request using
352             # tahoe player specific URL
353             tahoe_data = self._download_webpage(
354                 self._VIDEO_PAGE_TAHOE_TEMPLATE % video_id, video_id,
355                 data=urlencode_postdata({
356                     '__user': 0,
357                     '__a': 1,
358                     '__pc': self._search_regex(
359                         r'pkg_cohort["\']\s*:\s*["\'](.+?)["\']', webpage,
360                         'pkg cohort', default='PHASED:DEFAULT'),
361                     '__rev': self._search_regex(
362                         r'client_revision["\']\s*:\s*(\d+),', webpage,
363                         'client revision', default='3944515'),
364                 }),
365                 headers={
366                     'Content-Type': 'application/x-www-form-urlencoded',
367                 })
368             tahoe_js_data = self._parse_json(
369                 self._search_regex(
370                     r'for\s+\(\s*;\s*;\s*\)\s*;(.+)', tahoe_data,
371                     'tahoe js data', default='{}'),
372                 video_id, fatal=False)
373             video_data = extract_from_jsmods_instances(tahoe_js_data)
374
375         if not video_data:
376             raise ExtractorError('Cannot parse data')
377
378         formats = []
379         for f in video_data:
380             format_id = f['stream_type']
381             if f and isinstance(f, dict):
382                 f = [f]
383             if not f or not isinstance(f, list):
384                 continue
385             for quality in ('sd', 'hd'):
386                 for src_type in ('src', 'src_no_ratelimit'):
387                     src = f[0].get('%s_%s' % (quality, src_type))
388                     if src:
389                         preference = -10 if format_id == 'progressive' else 0
390                         if quality == 'hd':
391                             preference += 5
392                         formats.append({
393                             'format_id': '%s_%s_%s' % (format_id, quality, src_type),
394                             'url': src,
395                             'preference': preference,
396                         })
397             dash_manifest = f[0].get('dash_manifest')
398             if dash_manifest:
399                 formats.extend(self._parse_mpd_formats(
400                     compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
401         if not formats:
402             raise ExtractorError('Cannot find video formats')
403
404         self._sort_formats(formats)
405
406         video_title = self._html_search_regex(
407             r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage,
408             'title', default=None)
409         if not video_title:
410             video_title = self._html_search_regex(
411                 r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
412                 webpage, 'alternative title', default=None)
413         if not video_title:
414             video_title = self._html_search_meta(
415                 'description', webpage, 'title', default=None)
416         if video_title:
417             video_title = limit_length(video_title, 80)
418         else:
419             video_title = 'Facebook video #%s' % video_id
420         uploader = clean_html(get_element_by_id(
421             'fbPhotoPageAuthorName', webpage)) or self._search_regex(
422             r'ownerName\s*:\s*"([^"]+)"', webpage, 'uploader',
423             fatal=False) or self._og_search_title(webpage, fatal=False)
424         timestamp = int_or_none(self._search_regex(
425             r'<abbr[^>]+data-utime=["\'](\d+)', webpage,
426             'timestamp', default=None))
427         thumbnail = self._og_search_thumbnail(webpage)
428
429         info_dict = {
430             'id': video_id,
431             'title': video_title,
432             'formats': formats,
433             'uploader': uploader,
434             'timestamp': timestamp,
435             'thumbnail': thumbnail,
436         }
437
438         return webpage, info_dict
439
440     def _real_extract(self, url):
441         video_id = self._match_id(url)
442
443         real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
444         webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)
445
446         if info_dict:
447             return info_dict
448
449         if '/posts/' in url:
450             entries = [
451                 self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
452                 for vid in self._parse_json(
453                     self._search_regex(
454                         r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
455                         webpage, 'video ids', group='ids'),
456                     video_id)]
457
458             return self.playlist_result(entries, video_id)
459         else:
460             _, info_dict = self._extract_from_url(
461                 self._VIDEO_PAGE_TEMPLATE % video_id,
462                 video_id, fatal_if_no_video=True)
463             return info_dict
464
465
466 class FacebookPluginsVideoIE(InfoExtractor):
467     _VALID_URL = r'https?://(?:[\w-]+\.)?facebook\.com/plugins/video\.php\?.*?\bhref=(?P<id>https.+)'
468
469     _TESTS = [{
470         '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',
471         'md5': '5954e92cdfe51fe5782ae9bda7058a07',
472         'info_dict': {
473             'id': '10154383743583686',
474             'ext': 'mp4',
475             'title': 'What to do during the haze?',
476             'uploader': 'Gov.sg',
477             'upload_date': '20160826',
478             'timestamp': 1472184808,
479         },
480         'add_ie': [FacebookIE.ie_key()],
481     }, {
482         'url': 'https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fvideo.php%3Fv%3D10204634152394104',
483         'only_matching': True,
484     }, {
485         'url': 'https://www.facebook.com/plugins/video.php?href=https://www.facebook.com/gov.sg/videos/10154383743583686/&show_text=0&width=560',
486         'only_matching': True,
487     }]
488
489     def _real_extract(self, url):
490         return self.url_result(
491             compat_urllib_parse_unquote(self._match_id(url)),
492             FacebookIE.ie_key())