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[youtubedl] / youtube_dl / extractor / facebook.py
1 import json
2 import re
3 import socket
4
5 from .common import InfoExtractor
6 from ..utils import (
7 compat_http_client,
8 compat_str,
9 compat_urllib_error,
10 compat_urllib_parse,
11 compat_urllib_request,
12
13 ExtractorError,
14 )
15
16
17 class FacebookIE(InfoExtractor):
18 """Information Extractor for Facebook"""
19
20 _VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook\.com/(?:[^#?]*#!/)?(?:video/video|photo)\.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
21 _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
22 _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
23 _NETRC_MACHINE = 'facebook'
24 IE_NAME = u'facebook'
25 _TEST = {
26 u'url': u'https://www.facebook.com/photo.php?v=120708114770723',
27 u'file': u'120708114770723.mp4',
28 u'md5': u'48975a41ccc4b7a581abd68651c1a5a8',
29 u'info_dict': {
30 u"duration": 279,
31 u"title": u"PEOPLE ARE AWESOME 2013"
32 }
33 }
34
35 def report_login(self):
36 """Report attempt to log in."""
37 self.to_screen(u'Logging in')
38
39 def _login(self):
40 (useremail, password) = self._get_login_info()
41 if useremail is None:
42 return
43
44 login_page_req = compat_urllib_request.Request(self._LOGIN_URL)
45 login_page_req.add_header('Cookie', 'locale=en_US')
46 self.report_login()
47 login_page = self._download_webpage(login_page_req, None, note=False,
48 errnote=u'Unable to download login page')
49 lsd = self._search_regex(r'"lsd":"(\w*?)"', login_page, u'lsd')
50 lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, u'lgnrnd')
51
52 login_form = {
53 'email': useremail,
54 'pass': password,
55 'lsd': lsd,
56 'lgnrnd': lgnrnd,
57 'next': 'http://facebook.com/home.php',
58 'default_persistent': '0',
59 'legacy_return': '1',
60 'timezone': '-60',
61 'trynum': '1',
62 }
63 request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
64 request.add_header('Content-Type', 'application/x-www-form-urlencoded')
65 try:
66 login_results = compat_urllib_request.urlopen(request).read()
67 if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
68 self._downloader.report_warning(u'unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
69 return
70
71 check_form = {
72 'fb_dtsg': self._search_regex(r'"fb_dtsg":"(.*?)"', login_results, u'fb_dtsg'),
73 'nh': self._search_regex(r'name="nh" value="(\w*?)"', login_results, u'nh'),
74 'name_action_selected': 'dont_save',
75 'submit[Continue]': self._search_regex(r'<input value="(.*?)" name="submit\[Continue\]"', login_results, u'continue'),
76 }
77 check_req = compat_urllib_request.Request(self._CHECKPOINT_URL, compat_urllib_parse.urlencode(check_form))
78 check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
79 check_response = compat_urllib_request.urlopen(check_req).read()
80 if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
81 self._downloader.report_warning(u'Unable to confirm login, you have to login in your brower and authorize the login.')
82 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
83 self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
84 return
85
86 def _real_initialize(self):
87 self._login()
88
89 def _real_extract(self, url):
90 mobj = re.match(self._VALID_URL, url)
91 if mobj is None:
92 raise ExtractorError(u'Invalid URL: %s' % url)
93 video_id = mobj.group('ID')
94
95 url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
96 webpage = self._download_webpage(url, video_id)
97
98 BEFORE = '{swf.addParam(param[0], param[1]);});\n'
99 AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
100 m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
101 if not m:
102 m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
103 if m_msg is not None:
104 raise ExtractorError(
105 u'The video is not available, Facebook said: "%s"' % m_msg.group(1),
106 expected=True)
107 else:
108 raise ExtractorError(u'Cannot parse data')
109 data = dict(json.loads(m.group(1)))
110 params_raw = compat_urllib_parse.unquote(data['params'])
111 params = json.loads(params_raw)
112 video_data = params['video_data'][0]
113 video_url = video_data.get('hd_src')
114 if not video_url:
115 video_url = video_data['sd_src']
116 if not video_url:
117 raise ExtractorError(u'Cannot find video URL')
118 video_duration = int(video_data['video_duration'])
119 thumbnail = video_data['thumbnail_src']
120
121 video_title = self._html_search_regex(
122 r'<h2 class="uiHeaderTitle">([^<]*)</h2>', webpage, u'title')
123
124 info = {
125 'id': video_id,
126 'title': video_title,
127 'url': video_url,
128 'ext': 'mp4',
129 'duration': video_duration,
130 'thumbnail': thumbnail,
131 }
132 return [info]