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[youtubedl] / 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 story\.php
39 )\?(?:.*?)(?:v|video_id|story_fbid)=|
40 [^/]+/videos/(?:[^/]+/)?|
41 [^/]+/posts/|
42 groups/[^/]+/permalink/
43 )|
44 facebook:
45 )
46 (?P<id>[0-9]+)
47 '''
48 _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
49 _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
50 _NETRC_MACHINE = 'facebook'
51 IE_NAME = 'facebook'
52
53 _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
54
55 _VIDEO_PAGE_TEMPLATE = 'https://www.facebook.com/video/video.php?v=%s'
56
57 _TESTS = [{
58 'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
59 'md5': '6a40d33c0eccbb1af76cf0485a052659',
60 'info_dict': {
61 'id': '637842556329505',
62 'ext': 'mp4',
63 'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
64 'uploader': 'Tennis on Facebook',
65 }
66 }, {
67 'note': 'Video without discernible title',
68 'url': 'https://www.facebook.com/video.php?v=274175099429670',
69 'info_dict': {
70 'id': '274175099429670',
71 'ext': 'mp4',
72 'title': 'Facebook video #274175099429670',
73 'uploader': 'Asif Nawab Butt',
74 },
75 'expected_warnings': [
76 'title'
77 ]
78 }, {
79 'note': 'Video with DASH manifest',
80 'url': 'https://www.facebook.com/video.php?v=957955867617029',
81 'md5': '54706e4db4f5ad58fbad82dde1f1213f',
82 'info_dict': {
83 'id': '957955867617029',
84 'ext': 'mp4',
85 'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
86 'uploader': 'Demy de Zeeuw',
87 },
88 }, {
89 'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
90 'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
91 'info_dict': {
92 'id': '544765982287235',
93 'ext': 'mp4',
94 'title': '"What are you doing running in the snow?"',
95 'uploader': 'FailArmy',
96 }
97 }, {
98 'url': 'https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903',
99 'md5': '1deb90b6ac27f7efcf6d747c8a27f5e3',
100 'info_dict': {
101 'id': '1035862816472149',
102 'ext': 'mp4',
103 'title': 'What the Flock Is Going On In New Zealand Credit: ViralHog',
104 'uploader': 'S. Saint',
105 },
106 }, {
107 'note': 'swf params escaped',
108 'url': 'https://www.facebook.com/barackobama/posts/10153664894881749',
109 'md5': '97ba073838964d12c70566e0085c2b91',
110 'info_dict': {
111 'id': '10153664894881749',
112 'ext': 'mp4',
113 'title': 'Facebook video #10153664894881749',
114 },
115 }, {
116 'url': 'https://www.facebook.com/video.php?v=10204634152394104',
117 'only_matching': True,
118 }, {
119 'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
120 'only_matching': True,
121 }, {
122 'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
123 'only_matching': True,
124 }, {
125 'url': 'facebook:544765982287235',
126 'only_matching': True,
127 }, {
128 'url': 'https://www.facebook.com/groups/164828000315060/permalink/764967300301124/',
129 'only_matching': True,
130 }, {
131 'url': 'https://zh-hk.facebook.com/peoplespower/videos/1135894589806027/',
132 'only_matching': True,
133 }]
134
135 @staticmethod
136 def _extract_url(webpage):
137 mobj = re.search(
138 r'<iframe[^>]+?src=(["\'])(?P<url>https://www\.facebook\.com/video/embed.+?)\1', webpage)
139 if mobj is not None:
140 return mobj.group('url')
141
142 # Facebook API embed
143 # see https://developers.facebook.com/docs/plugins/embedded-video-player
144 mobj = re.search(r'''(?x)<div[^>]+
145 class=(?P<q1>[\'"])[^\'"]*\bfb-(?:video|post)\b[^\'"]*(?P=q1)[^>]+
146 data-href=(?P<q2>[\'"])(?P<url>(?:https?:)?//(?:www\.)?facebook.com/.+?)(?P=q2)''', webpage)
147 if mobj is not None:
148 return mobj.group('url')
149
150 def _login(self):
151 (useremail, password) = self._get_login_info()
152 if useremail is None:
153 return
154
155 login_page_req = sanitized_Request(self._LOGIN_URL)
156 self._set_cookie('facebook.com', 'locale', 'en_US')
157 login_page = self._download_webpage(login_page_req, None,
158 note='Downloading login page',
159 errnote='Unable to download login page')
160 lsd = self._search_regex(
161 r'<input type="hidden" name="lsd" value="([^"]*)"',
162 login_page, 'lsd')
163 lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
164
165 login_form = {
166 'email': useremail,
167 'pass': password,
168 'lsd': lsd,
169 'lgnrnd': lgnrnd,
170 'next': 'http://facebook.com/home.php',
171 'default_persistent': '0',
172 'legacy_return': '1',
173 'timezone': '-60',
174 'trynum': '1',
175 }
176 request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
177 request.add_header('Content-Type', 'application/x-www-form-urlencoded')
178 try:
179 login_results = self._download_webpage(request, None,
180 note='Logging in', errnote='unable to fetch login page')
181 if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
182 error = self._html_search_regex(
183 r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
184 login_results, 'login error', default=None, group='error')
185 if error:
186 raise ExtractorError('Unable to login: %s' % error, expected=True)
187 self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
188 return
189
190 fb_dtsg = self._search_regex(
191 r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
192 h = self._search_regex(
193 r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)
194
195 if not fb_dtsg or not h:
196 return
197
198 check_form = {
199 'fb_dtsg': fb_dtsg,
200 'h': h,
201 'name_action_selected': 'dont_save',
202 }
203 check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
204 check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
205 check_response = self._download_webpage(check_req, None,
206 note='Confirming login')
207 if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
208 self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
209 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
210 self._downloader.report_warning('unable to log in: %s' % error_to_compat_str(err))
211 return
212
213 def _real_initialize(self):
214 self._login()
215
216 def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
217 req = sanitized_Request(url)
218 req.add_header('User-Agent', self._CHROME_USER_AGENT)
219 webpage = self._download_webpage(req, video_id)
220
221 video_data = None
222
223 BEFORE = '{swf.addParam(param[0], param[1]);});'
224 AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
225 PATTERN = re.escape(BEFORE) + '(?:\n|\\\\n)(.*?)' + re.escape(AFTER)
226
227 for m in re.findall(PATTERN, webpage):
228 swf_params = m.replace('\\\\', '\\').replace('\\"', '"')
229 data = dict(json.loads(swf_params))
230 params_raw = compat_urllib_parse_unquote(data['params'])
231 video_data_candidate = json.loads(params_raw)['video_data']
232 for _, f in video_data_candidate.items():
233 if not f:
234 continue
235 if isinstance(f, dict):
236 f = [f]
237 if not isinstance(f, list):
238 continue
239 if f[0].get('video_id') == video_id:
240 video_data = video_data_candidate
241 break
242 if video_data:
243 break
244
245 def video_data_list2dict(video_data):
246 ret = {}
247 for item in video_data:
248 format_id = item['stream_type']
249 ret.setdefault(format_id, []).append(item)
250 return ret
251
252 if not video_data:
253 server_js_data = self._parse_json(self._search_regex(
254 r'handleServerJS\(({.+})\);', webpage, 'server js data', default='{}'), video_id)
255 for item in server_js_data.get('instances', []):
256 if item[1][0] == 'VideoConfig':
257 video_data = video_data_list2dict(item[2][0]['videoData'])
258 break
259
260 if not video_data:
261 if not fatal_if_no_video:
262 return webpage, False
263 m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
264 if m_msg is not None:
265 raise ExtractorError(
266 'The video is not available, Facebook said: "%s"' % m_msg.group(1),
267 expected=True)
268 else:
269 raise ExtractorError('Cannot parse data')
270
271 formats = []
272 for format_id, f in video_data.items():
273 if f and isinstance(f, dict):
274 f = [f]
275 if not f or not isinstance(f, list):
276 continue
277 for quality in ('sd', 'hd'):
278 for src_type in ('src', 'src_no_ratelimit'):
279 src = f[0].get('%s_%s' % (quality, src_type))
280 if src:
281 preference = -10 if format_id == 'progressive' else 0
282 if quality == 'hd':
283 preference += 5
284 formats.append({
285 'format_id': '%s_%s_%s' % (format_id, quality, src_type),
286 'url': src,
287 'preference': preference,
288 })
289 dash_manifest = f[0].get('dash_manifest')
290 if dash_manifest:
291 formats.extend(self._parse_mpd_formats(
292 compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
293 if not formats:
294 raise ExtractorError('Cannot find video formats')
295
296 self._sort_formats(formats)
297
298 video_title = self._html_search_regex(
299 r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
300 default=None)
301 if not video_title:
302 video_title = self._html_search_regex(
303 r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
304 webpage, 'alternative title', default=None)
305 video_title = limit_length(video_title, 80)
306 if not video_title:
307 video_title = 'Facebook video #%s' % video_id
308 uploader = clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
309
310 info_dict = {
311 'id': video_id,
312 'title': video_title,
313 'formats': formats,
314 'uploader': uploader,
315 }
316
317 return webpage, info_dict
318
319 def _real_extract(self, url):
320 video_id = self._match_id(url)
321
322 real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
323 webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)
324
325 if info_dict:
326 return info_dict
327
328 if '/posts/' in url:
329 entries = [
330 self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
331 for vid in self._parse_json(
332 self._search_regex(
333 r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
334 webpage, 'video ids', group='ids'),
335 video_id)]
336
337 return self.playlist_result(entries, video_id)
338 else:
339 _, info_dict = self._extract_from_url(
340 self._VIDEO_PAGE_TEMPLATE % video_id,
341 video_id, fatal_if_no_video=True)
342 return info_dict