153 lines
6.2 KiB
Python
153 lines
6.2 KiB
Python
from __future__ import unicode_literals
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import json
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import re
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import socket
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from .common import InfoExtractor
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from ..utils import (
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compat_http_client,
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compat_str,
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compat_urllib_error,
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compat_urllib_parse,
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compat_urllib_request,
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urlencode_postdata,
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ExtractorError,
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limit_length,
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)
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class FacebookIE(InfoExtractor):
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_VALID_URL = r'''(?x)
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https?://(?:\w+\.)?facebook\.com/
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(?:[^#]*?\#!/)?
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(?:video/video\.php|photo\.php|video\.php|video/embed)\?(?:.*?)
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(?:v|video_id)=(?P<id>[0-9]+)
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(?:.*)'''
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_LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
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_CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
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_NETRC_MACHINE = 'facebook'
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IE_NAME = 'facebook'
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_TESTS = [{
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'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
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'md5': '6a40d33c0eccbb1af76cf0485a052659',
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'info_dict': {
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'id': '637842556329505',
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'ext': 'mp4',
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'duration': 38,
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'title': 'Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam fin...',
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}
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}, {
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'note': 'Video without discernible title',
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'url': 'https://www.facebook.com/video.php?v=274175099429670',
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'info_dict': {
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'id': '274175099429670',
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'ext': 'mp4',
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'title': 'Facebook video #274175099429670',
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}
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}, {
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'url': 'https://www.facebook.com/video.php?v=10204634152394104',
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'only_matching': True,
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}]
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def _login(self):
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(useremail, password) = self._get_login_info()
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if useremail is None:
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return
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login_page_req = compat_urllib_request.Request(self._LOGIN_URL)
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login_page_req.add_header('Cookie', 'locale=en_US')
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login_page = self._download_webpage(login_page_req, None,
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note='Downloading login page',
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errnote='Unable to download login page')
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lsd = self._search_regex(
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r'<input type="hidden" name="lsd" value="([^"]*)"',
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login_page, 'lsd')
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lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
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login_form = {
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'email': useremail,
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'pass': password,
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'lsd': lsd,
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'lgnrnd': lgnrnd,
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'next': 'http://facebook.com/home.php',
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'default_persistent': '0',
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'legacy_return': '1',
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'timezone': '-60',
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'trynum': '1',
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}
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request = compat_urllib_request.Request(self._LOGIN_URL, urlencode_postdata(login_form))
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request.add_header('Content-Type', 'application/x-www-form-urlencoded')
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try:
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login_results = self._download_webpage(request, None,
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note='Logging in', errnote='unable to fetch login page')
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if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
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self._downloader.report_warning('unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
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return
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check_form = {
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'fb_dtsg': self._search_regex(r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg'),
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'h': self._search_regex(
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r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h'),
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'name_action_selected': 'dont_save',
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}
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check_req = compat_urllib_request.Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
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check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
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check_response = self._download_webpage(check_req, None,
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note='Confirming login')
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if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
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self._downloader.report_warning('Unable to confirm login, you have to login in your brower and authorize the login.')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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self._downloader.report_warning('unable to log in: %s' % compat_str(err))
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return
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def _real_initialize(self):
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self._login()
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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video_id = mobj.group('id')
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url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
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webpage = self._download_webpage(url, video_id)
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BEFORE = '{swf.addParam(param[0], param[1]);});\n'
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AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
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m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
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if not m:
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m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
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if m_msg is not None:
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raise ExtractorError(
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'The video is not available, Facebook said: "%s"' % m_msg.group(1),
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expected=True)
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else:
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raise ExtractorError('Cannot parse data')
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data = dict(json.loads(m.group(1)))
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params_raw = compat_urllib_parse.unquote(data['params'])
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params = json.loads(params_raw)
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video_data = params['video_data'][0]
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video_url = video_data.get('hd_src')
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if not video_url:
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video_url = video_data['sd_src']
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if not video_url:
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raise ExtractorError('Cannot find video URL')
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video_title = self._html_search_regex(
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r'<h2 class="uiHeaderTitle">([^<]*)</h2>', webpage, 'title',
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fatal=False)
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if not video_title:
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video_title = self._html_search_regex(
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r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
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webpage, 'alternative title', default=None)
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video_title = limit_length(video_title, 80)
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if not video_title:
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video_title = 'Facebook video #%s' % video_id
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return {
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'id': video_id,
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'title': video_title,
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'url': video_url,
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'duration': int(video_data['video_duration']),
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'thumbnail': video_data['thumbnail_src'],
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}
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