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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 ..utils import (
9 compat_http_client,
10 compat_str,
11 compat_urllib_error,
12 compat_urllib_parse,
13 compat_urllib_request,
14 urlencode_postdata,
15
16 ExtractorError,
17 )
18
19
20 class FacebookIE(InfoExtractor):
21 _VALID_URL = r'''(?x)
22 https?://(?:\w+\.)?facebook\.com/
23 (?:[^#?]*\#!/)?
24 (?:video/video\.php|photo\.php|video/embed)\?(?:.*?)
25 (?:v|video_id)=(?P<id>[0-9]+)
26 (?:.*)'''
27 _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
28 _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
29 _NETRC_MACHINE = 'facebook'
30 IE_NAME = 'facebook'
31 _TEST = {
32 'url': 'https://www.facebook.com/photo.php?v=120708114770723',
33 'md5': '48975a41ccc4b7a581abd68651c1a5a8',
34 'info_dict': {
35 'id': '120708114770723',
36 'ext': 'mp4',
37 'duration': 279,
38 'title': 'PEOPLE ARE AWESOME 2013',
39 }
40 }
41
42 def _login(self):
43 (useremail, password) = self._get_login_info()
44 if useremail is None:
45 return
46
47 login_page_req = compat_urllib_request.Request(self._LOGIN_URL)
48 login_page_req.add_header('Cookie', 'locale=en_US')
49 login_page = self._download_webpage(login_page_req, None,
50 note='Downloading login page',
51 errnote='Unable to download login page')
52 lsd = self._search_regex(
53 r'<input type="hidden" name="lsd" value="([^"]*)"',
54 login_page, 'lsd')
55 lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
56
57 login_form = {
58 'email': useremail,
59 'pass': password,
60 'lsd': lsd,
61 'lgnrnd': lgnrnd,
62 'next': 'http://facebook.com/home.php',
63 'default_persistent': '0',
64 'legacy_return': '1',
65 'timezone': '-60',
66 'trynum': '1',
67 }
68 request = compat_urllib_request.Request(self._LOGIN_URL, urlencode_postdata(login_form))
69 request.add_header('Content-Type', 'application/x-www-form-urlencoded')
70 try:
71 login_results = self._download_webpage(request, None,
72 note='Logging in', errnote='unable to fetch login page')
73 if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
74 self._downloader.report_warning('unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
75 return
76
77 check_form = {
78 'fb_dtsg': self._search_regex(r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg'),
79 'h': self._search_regex(r'name="h" value="(\w*?)"', login_results, 'h'),
80 'name_action_selected': 'dont_save',
81 }
82 check_req = compat_urllib_request.Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
83 check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
84 check_response = self._download_webpage(check_req, None,
85 note='Confirming login')
86 if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
87 self._downloader.report_warning('Unable to confirm login, you have to login in your brower and authorize the login.')
88 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
89 self._downloader.report_warning('unable to log in: %s' % compat_str(err))
90 return
91
92 def _real_initialize(self):
93 self._login()
94
95 def _real_extract(self, url):
96 mobj = re.match(self._VALID_URL, url)
97 video_id = mobj.group('id')
98
99 url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
100 webpage = self._download_webpage(url, video_id)
101
102 BEFORE = '{swf.addParam(param[0], param[1]);});\n'
103 AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
104 m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
105 if not m:
106 m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
107 if m_msg is not None:
108 raise ExtractorError(
109 'The video is not available, Facebook said: "%s"' % m_msg.group(1),
110 expected=True)
111 else:
112 raise ExtractorError('Cannot parse data')
113 data = dict(json.loads(m.group(1)))
114 params_raw = compat_urllib_parse.unquote(data['params'])
115 params = json.loads(params_raw)
116 video_data = params['video_data'][0]
117 video_url = video_data.get('hd_src')
118 if not video_url:
119 video_url = video_data['sd_src']
120 if not video_url:
121 raise ExtractorError('Cannot find video URL')
122
123 video_title = self._html_search_regex(
124 r'<h2 class="uiHeaderTitle">([^<]*)</h2>', webpage, 'title')
125
126 return {
127 'id': video_id,
128 'title': video_title,
129 'url': video_url,
130 'duration': int(video_data['video_duration']),
131 'thumbnail': video_data['thumbnail_src'],
132 }