]> git.bitcoin.ninja Git - youtube-dl/blob - youtube_dl/extractor/facebook.py
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[youtube-dl] / 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_http_client,
10     compat_str,
11     compat_urllib_error,
12     compat_urllib_parse_unquote,
13     compat_urllib_request,
14 )
15 from ..utils import (
16     ExtractorError,
17     limit_length,
18     urlencode_postdata,
19     get_element_by_id,
20     clean_html,
21 )
22
23
24 class FacebookIE(InfoExtractor):
25     _VALID_URL = r'''(?x)
26         https?://(?:\w+\.)?facebook\.com/
27         (?:[^#]*?\#!/)?
28         (?:
29             (?:video/video\.php|photo\.php|video\.php|video/embed)\?(?:.*?)
30             (?:v|video_id)=|
31             [^/]+/videos/(?:[^/]+/)?
32         )
33         (?P<id>[0-9]+)
34         (?:.*)'''
35     _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
36     _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
37     _NETRC_MACHINE = 'facebook'
38     IE_NAME = 'facebook'
39     _TESTS = [{
40         'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
41         'md5': '6a40d33c0eccbb1af76cf0485a052659',
42         'info_dict': {
43             'id': '637842556329505',
44             'ext': 'mp4',
45             'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
46             'uploader': 'Tennis on Facebook',
47         }
48     }, {
49         'note': 'Video without discernible title',
50         'url': 'https://www.facebook.com/video.php?v=274175099429670',
51         'info_dict': {
52             'id': '274175099429670',
53             'ext': 'mp4',
54             'title': 'Facebook video #274175099429670',
55             'uploader': 'Asif Nawab Butt',
56         },
57         'expected_warnings': [
58             'title'
59         ]
60     }, {
61         'url': 'https://www.facebook.com/video.php?v=10204634152394104',
62         'only_matching': True,
63     }, {
64         'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
65         'only_matching': True,
66     }, {
67         'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
68         'only_matching': True,
69     }]
70
71     def _login(self):
72         (useremail, password) = self._get_login_info()
73         if useremail is None:
74             return
75
76         login_page_req = compat_urllib_request.Request(self._LOGIN_URL)
77         login_page_req.add_header('Cookie', 'locale=en_US')
78         login_page = self._download_webpage(login_page_req, None,
79                                             note='Downloading login page',
80                                             errnote='Unable to download login page')
81         lsd = self._search_regex(
82             r'<input type="hidden" name="lsd" value="([^"]*)"',
83             login_page, 'lsd')
84         lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
85
86         login_form = {
87             'email': useremail,
88             'pass': password,
89             'lsd': lsd,
90             'lgnrnd': lgnrnd,
91             'next': 'http://facebook.com/home.php',
92             'default_persistent': '0',
93             'legacy_return': '1',
94             'timezone': '-60',
95             'trynum': '1',
96         }
97         request = compat_urllib_request.Request(self._LOGIN_URL, urlencode_postdata(login_form))
98         request.add_header('Content-Type', 'application/x-www-form-urlencoded')
99         try:
100             login_results = self._download_webpage(request, None,
101                                                    note='Logging in', errnote='unable to fetch login page')
102             if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
103                 self._downloader.report_warning('unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
104                 return
105
106             check_form = {
107                 'fb_dtsg': self._search_regex(r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg'),
108                 'h': self._search_regex(
109                     r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h'),
110                 'name_action_selected': 'dont_save',
111             }
112             check_req = compat_urllib_request.Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
113             check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
114             check_response = self._download_webpage(check_req, None,
115                                                     note='Confirming login')
116             if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
117                 self._downloader.report_warning('Unable to confirm login, you have to login in your brower and authorize the login.')
118         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
119             self._downloader.report_warning('unable to log in: %s' % compat_str(err))
120             return
121
122     def _real_initialize(self):
123         self._login()
124
125     def _real_extract(self, url):
126         video_id = self._match_id(url)
127         url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
128         webpage = self._download_webpage(url, video_id)
129
130         BEFORE = '{swf.addParam(param[0], param[1]);});\n'
131         AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
132         m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
133         if not m:
134             m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
135             if m_msg is not None:
136                 raise ExtractorError(
137                     'The video is not available, Facebook said: "%s"' % m_msg.group(1),
138                     expected=True)
139             else:
140                 raise ExtractorError('Cannot parse data')
141         data = dict(json.loads(m.group(1)))
142         params_raw = compat_urllib_parse_unquote(data['params'])
143         params = json.loads(params_raw)
144
145         formats = []
146         for format_id, f in params['video_data'].items():
147             if not f or not isinstance(f, list):
148                 continue
149             for quality in ('sd', 'hd'):
150                 for src_type in ('src', 'src_no_ratelimit'):
151                     src = f[0].get('%s_%s' % (quality, src_type))
152                     if src:
153                         formats.append({
154                             'format_id': '%s_%s_%s' % (format_id, quality, src_type),
155                             'url': src,
156                             'preference': -10 if format_id == 'progressive' else 0,
157                         })
158         if not formats:
159             raise ExtractorError('Cannot find video formats')
160
161         video_title = self._html_search_regex(
162             r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
163             default=None)
164         if not video_title:
165             video_title = self._html_search_regex(
166                 r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
167                 webpage, 'alternative title', fatal=False)
168             video_title = limit_length(video_title, 80)
169         if not video_title:
170             video_title = 'Facebook video #%s' % video_id
171         uploader = clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
172
173         return {
174             'id': video_id,
175             'title': video_title,
176             'formats': formats,
177             'uploader': uploader,
178         }