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from __future__ import unicode_literals
import json
import re
import socket
from .common import InfoExtractor
from ..compat import (
compat_etree_fromstring,
compat_http_client,
compat_urllib_error,
compat_urllib_parse_unquote,
compat_urllib_parse_unquote_plus,
)
from ..utils import (
error_to_compat_str,
ExtractorError,
limit_length,
sanitized_Request,
urlencode_postdata,
get_element_by_id,
clean_html,
)
class FacebookIE(InfoExtractor):
_VALID_URL = r'''(?x)
(?:
https?://
(?:\w+\.)?facebook\.com/
(?:[^#]*?\#!/)?
(?:
(?:
video/video\.php|
photo\.php|
video\.php|
video/embed|
story\.php
)\?(?:.*?)(?:v|video_id|story_fbid)=|
[^/]+/videos/(?:[^/]+/)?|
[^/]+/posts/
)|
facebook:
)
(?P<id>[0-9]+)
'''
_LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
_CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
_NETRC_MACHINE = 'facebook'
IE_NAME = 'facebook'
_CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
_VIDEO_PAGE_TEMPLATE = 'https://www.facebook.com/video/video.php?v=%s'
_TESTS = [{
'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
'md5': '6a40d33c0eccbb1af76cf0485a052659',
'info_dict': {
'id': '637842556329505',
'ext': 'mp4',
'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
'uploader': 'Tennis on Facebook',
}
}, {
'note': 'Video without discernible title',
'url': 'https://www.facebook.com/video.php?v=274175099429670',
'info_dict': {
'id': '274175099429670',
'ext': 'mp4',
'title': 'Facebook video #274175099429670',
'uploader': 'Asif Nawab Butt',
},
'expected_warnings': [
'title'
]
}, {
'note': 'Video with DASH manifest',
'url': 'https://www.facebook.com/video.php?v=957955867617029',
'md5': '54706e4db4f5ad58fbad82dde1f1213f',
'info_dict': {
'id': '957955867617029',
'ext': 'mp4',
'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
'uploader': 'Demy de Zeeuw',
},
}, {
'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
'info_dict': {
'id': '544765982287235',
'ext': 'mp4',
'title': '"What are you doing running in the snow?"',
'uploader': 'FailArmy',
}
}, {
'url': 'https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903',
'md5': '1deb90b6ac27f7efcf6d747c8a27f5e3',
'info_dict': {
'id': '1035862816472149',
'ext': 'mp4',
'title': 'What the Flock Is Going On In New Zealand Credit: ViralHog',
'uploader': 'S. Saint',
},
}, {
'note': 'swf params escaped',
'url': 'https://www.facebook.com/barackobama/posts/10153664894881749',
'md5': '97ba073838964d12c70566e0085c2b91',
'info_dict': {
'id': '10153664894881749',
'ext': 'mp4',
'title': 'Facebook video #10153664894881749',
},
}, {
'url': 'https://www.facebook.com/video.php?v=10204634152394104',
'only_matching': True,
}, {
'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
'only_matching': True,
}, {
'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
'only_matching': True,
}, {
'url': 'facebook:544765982287235',
'only_matching': True,
}]
def _login(self):
(useremail, password) = self._get_login_info()
if useremail is None:
return
login_page_req = sanitized_Request(self._LOGIN_URL)
self._set_cookie('facebook.com', 'locale', 'en_US')
login_page = self._download_webpage(login_page_req, None,
note='Downloading login page',
errnote='Unable to download login page')
lsd = self._search_regex(
r'<input type="hidden" name="lsd" value="([^"]*)"',
login_page, 'lsd')
lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
login_form = {
'email': useremail,
'pass': password,
'lsd': lsd,
'lgnrnd': lgnrnd,
'next': 'http://facebook.com/home.php',
'default_persistent': '0',
'legacy_return': '1',
'timezone': '-60',
'trynum': '1',
}
request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
request.add_header('Content-Type', 'application/x-www-form-urlencoded')
try:
login_results = self._download_webpage(request, None,
note='Logging in', errnote='unable to fetch login page')
if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
error = self._html_search_regex(
r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
login_results, 'login error', default=None, group='error')
if error:
raise ExtractorError('Unable to login: %s' % error, expected=True)
self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
return
fb_dtsg = self._search_regex(
r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
h = self._search_regex(
r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)
if not fb_dtsg or not h:
return
check_form = {
'fb_dtsg': fb_dtsg,
'h': h,
'name_action_selected': 'dont_save',
}
check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
check_response = self._download_webpage(check_req, None,
note='Confirming login')
if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
self._downloader.report_warning('unable to log in: %s' % error_to_compat_str(err))
return
def _real_initialize(self):
self._login()
def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
req = sanitized_Request(url)
req.add_header('User-Agent', self._CHROME_USER_AGENT)
webpage = self._download_webpage(req, video_id)
video_data = None
BEFORE = '{swf.addParam(param[0], param[1]);});'
AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
m = re.search(re.escape(BEFORE) + '(?:\n|\\\\n)(.*?)' + re.escape(AFTER), webpage)
if m:
swf_params = m.group(1).replace('\\\\', '\\').replace('\\"', '"')
data = dict(json.loads(swf_params))
params_raw = compat_urllib_parse_unquote(data['params'])
video_data = json.loads(params_raw)['video_data']
def video_data_list2dict(video_data):
ret = {}
for item in video_data:
format_id = item['stream_type']
ret.setdefault(format_id, []).append(item)
return ret
if not video_data:
server_js_data = self._parse_json(self._search_regex(
r'handleServerJS\(({.+})\);', webpage, 'server js data', default='{}'), video_id)
for item in server_js_data.get('instances', []):
if item[1][0] == 'VideoConfig':
video_data = video_data_list2dict(item[2][0]['videoData'])
break
if not video_data:
if not fatal_if_no_video:
return webpage, False
m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
if m_msg is not None:
raise ExtractorError(
'The video is not available, Facebook said: "%s"' % m_msg.group(1),
expected=True)
else:
raise ExtractorError('Cannot parse data')
formats = []
for format_id, f in video_data.items():
if not f or not isinstance(f, list):
continue
for quality in ('sd', 'hd'):
for src_type in ('src', 'src_no_ratelimit'):
src = f[0].get('%s_%s' % (quality, src_type))
if src:
preference = -10 if format_id == 'progressive' else 0
if quality == 'hd':
preference += 5
formats.append({
'format_id': '%s_%s_%s' % (format_id, quality, src_type),
'url': src,
'preference': preference,
})
dash_manifest = f[0].get('dash_manifest')
if dash_manifest:
formats.extend(self._parse_mpd_formats(
compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
if not formats:
raise ExtractorError('Cannot find video formats')
self._sort_formats(formats)
video_title = self._html_search_regex(
r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
default=None)
if not video_title:
video_title = self._html_search_regex(
r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
webpage, 'alternative title', default=None)
video_title = limit_length(video_title, 80)
if not video_title:
video_title = 'Facebook video #%s' % video_id
uploader = clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
info_dict = {
'id': video_id,
'title': video_title,
'formats': formats,
'uploader': uploader,
}
return webpage, info_dict
def _real_extract(self, url):
video_id = self._match_id(url)
real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)
if info_dict:
return info_dict
if '/posts/' in url:
entries = [
self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
for vid in self._parse_json(
self._search_regex(
r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
webpage, 'video ids', group='ids'),
video_id)]
return self.playlist_result(entries, video_id)
else:
_, info_dict = self._extract_from_url(
self._VIDEO_PAGE_TEMPLATE % video_id,
video_id, fatal_if_no_video=True)
return info_dict
|
